Medium-Induced Modification of Z-Tagged Charged Particle Yields in Pb + Pb Collisions at 5.02 TeV with the ATLAS Detector

Medium-Induced Modification of Z-Tagged Charged Particle Yields in Pb +Pb Collisions at 5.02 TeV with the ATLAS Detector G. Aad et al.* (ATLAS Collaboration) (Received 25 August 2020; revised 3 November 2020; accepted 8 January 2021; published 19 February 2021) The yield of charged particles opposite to a Zboson with large transverse momentum (pT) is measured in 260 pb−1of pp and 1.7nb−1of Pb þPb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The Zboson tag is used to select hard-scattered partons with specific kinematics, and to observe how their showers are modified as they propagate through the quarkgluon plasma created in Pb þPb collisions. Compared with pp collisions, charged-particle yields in Pb þPb collisions show significant modifications as a function of charged-particle pTin a way that depends on event centrality and Zboson pT. The data are compared with a variety of theoretical calculations and provide new information about the medium-induced energy loss of partons in a pTregime difficult to measure through other channels. DOI: 10.1103/PhysRevLett.126.072301 Collisions of heavy nuclei at ultrarelativistic energies at the Large Hadron Collider (LHC) and the Relativistic Heavy Ion Collider (RHIC) are understood to produce an extended region of hot and dense matter where partons exist in a deconfined state known as the quark-gluon plasma (QGP). The high density of unscreened color charges in the QGP causes the showers of hard-scattered partons with large transverse momentum (pT)tobe modified as they traverse the medium [1]. These modifications are observed in measurements of dijet and photonjet momentum imbalance [2–5], and in jet fragmentation functions [6,7]. The large integrated luminosity of Pb þPb collisions delivered during LHC Run 2 has enabled measurements of jets produced in association with a high-pTZboson. At leading order, the Zboson and the jet are produced back to back in the azimuthal plane, with equal pT. Since Zbosons and their decay leptons, or similarly, photons, do not participate in the strong interaction and are not modified by the QGP [8,9], they provide an estimate of the pTand azimuthal direction of the partner hard-scattered parton before the developing shower is modified through interactions with the QGP [10,11]. Measurements of photon-tagged fragmentation functions at the LHC [12,13] and photon-hadron correlations at RHIC [14,15] used this feature to perform detailed studies of jet quenching. At fixed pT, jets balancing Zbosons and photons arise from processes with different Q2, and can test the sensitivity of the energy loss process to parton virtuality. Additionally, the use of isolated photons at low photon pT(≲60 GeV) is difficult due to the large hadrondecay background, motivating the use of Zbosons. A measurement of Zþjet production with pZ T>60 GeV by CMS demonstrates that the total pTcarried inside the jet cone is decreased in Pb þPb events compared with that in pp events [16]. However, the modification of the jet’s constituent particle pTdistributions, or any lower pZ T selections, have not yet been studied. This Letter presents a measurement of the yield of charged particles produced opposite in azimuth to a Z boson with pZ T>15 GeV in Pb þPb and pp collisions at a nucleon-nucleon center-of-mass energy ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV with the ATLAS detector at the LHC. The Pb þPb and pp data were recorded in 2018 and 2017, respectively, and correspond to integrated luminosities of up to 1.7nb−1 and 260 pb−1. The charged particles are required to have pch T>1GeV and be approximately back to back with the Z boson in the transverse plane, with azimuthal separation Δϕlarger than 3π=4[17]. In simulations of pp collisions, particles meeting these criteria reside primarily in the leading jet azimuthally opposite to the Zboson. The per-Zyields of charged particles, Nch, are reported as a function of pch T,ð1=NZÞðd2Nch=dpch TdΔϕÞ,inpp and Pb þ Pb collisions. To quantify the modification resulting from the partons’propagation through the QGP, the ratio of particle yields between Pb þPb and pp collisions, IAA,is reported and compared with the expectations from theoretical calculations. This measurement explores phenomena similar to those in measurements of the photon-tagged jet fragmentation function [12]. However, requiring a *Full author list given at the end of the article. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. PHYSICAL REVIEW LETTERS 126, 072301 (2021) 0031-9007=21=126(7)=072301(20) 072301-1 © 2021 CERN, for the ATLAS Collaboration reconstructed jet may result in a bias towards events with less energy loss than average [18–20]. Since there is no such requirement in this measurement, it provides additional insight into energy loss in an unbiased way, at low pZ=γ Tvalues which have not yet been measured at the LHC and where theoretical models have not been tested. The ATLAS experiment [21] is a multipurpose particle detector with a forward-backward symmetric cylindrical geometry and a near 4πcoverage in solid angle. It consists of an inner tracking detector surrounded by a superconducting solenoid providing a 2 T axial magnetic field, electromagnetic and hadron calorimeters, and a muon spectrometer. The inner tracking detector covers the pseudorapidity range jηj<2.5. It consists of silicon pixel, silicon microstrip, and transition radiation tracking detectors [22,23]. Lead/liquid-argon (LAr) sampling calorimeters provide electromagnetic (EM) energy measurements with high granularity. A steel/scintillator-tile hadron calorimeter covers the central pseudorapidity range (jηj<1.7). Liquid-argon calorimeters with separate EM and hadronic compartments instrument the end cap (up to jηj¼3.2) and forward (FCal, up to jηj¼4.9) regions. The muon spectrometer surrounds the calorimeters and includes three air-core toroidal superconducting magnets with field integrals ranging between 2.0 and 6.0 T m, a system of precision tracking chambers, and fast detectors for triggering. During Pb þPb data taking, the muon system was operational for only 1.4nb−1of the total integrated luminosity. Thus the dimuon channel is analyzed only in this subset of data. Events with a high-pTelectron or muon are initially selected for analysis by the single-lepton triggers described in Refs. [24,25]. The centrality of Pb þPb events is defined using the total transverse energy measured in the FCal [4,26],ΣEPb T.PbþPb events are divided into three categories which correspond to the 0%–10%, 10%–30%, and 30%–80% centrality intervals in minimum-bias (MB) events, the smaller values indicating larger nuclear overlap regions and thus larger, hotter QGP regions. The orientation of the underlying event (UE) elliptic flow is determined from the azimuthal distribution of the FCal energy [27,28]. In pp events, the average number of interactions per bunch crossing ranged from 2 to 4, and thus all chargedparticle tracks are required to originate from the primary reconstructed vertex [29]. Monte Carlo simulations of ffiffiffi s p¼5.02 TeV pp collisions with Zbosons decaying in the dielectron and dimuon channels, as well as data-driven studies, are used to correct the data for bin migration and reconstruction inefficiencies. Generated events were passed through a GEANT 4simulation [30,31] of the ATLAS detector under the same conditions present during data taking and were digitized and reconstructed in the same way as the data. The Zboson events were generated at next-to-leading order (NLO) with the POWHEG - BOX v2 program [32–35] interfaced to the PYTHIA 8.186 parton shower model [36]. The NLO CT10 parton distribution function (PDF) set [37] was used in the matrix element, while the CTEQ6L1 PDF set [38] and the AZNLO tuned set of parameters [39] were used to model the parton shower. Four million events were generated to serve as the simulation sample for pp collisions. To model Pb þPb events, fifteen million simulated pp events were overlaid at the detector-hit level with MB Pb þPb events in data. This data-overlay sample was reweighted on an event-by-event basis to match the ΣEPb Tdistribution for Pb þPb events containing Zbosons. The Zbosons in pp and Pb þPb events are reconstructed in opposite-sign dielectron and dimuon decay channels using procedures similar to those described in Refs. [9,40]. Reconstructed electrons are required to have a transverse momentum pe T>20 GeV, to lie within the fiducial acceptance of the EM barrel (jηej<1.37) or end cap (1.52 <jηej<2.47) detectors, and to satisfy “loose” likelihood-based identification criteria, which have been optimized separately for pp and Pb þPb events [41]. Reconstructed muons are required to have a transverse momentum pμ T>20 GeV, to lie within the fiducial acceptance of the muon spectrometer (jημj<2.5), and to pass the “medium”selection requirements described in Ref. [42]. The Z→ll candidates are required to be within the mass range 76 <m ll <106 GeV and have pZ T>15 GeV. This selection ensures that the contribution from multijet and other backgrounds is smaller than 1.5% (0.1%) for the dielectron (dimuon) channel, and is considered negligible. In total, these criteria select approximately 21 000 (28 000) Z→ee (Z→μμ) events in pp data, and 3400 (4100) events in Pb þPb data. Each Zdata event is assigned a series of weights, derived from simulation and data, to account for the trigger, reconstruction and selection efficiencies of its decay leptons. Individual lepton trigger efficiencies are determined directly in pp and Pb þPb data using tag-and-probe techniques [24,25], and are 0.70–0.80 for each muon and 0.75–0.95 for each electron. Reconstruction and selection efficiencies are determined using simulation and are 0.65–0.80 for muons and 0.65–0.95 for electrons. Although the efficiencies may vary substantially with the individual lepton pT,η, and ϕ, the resulting dependence on pZ Tis weak due to the large Zmass and weak correlation between bosons and their decay leptons. Charged-particle tracks are reconstructed from hits in the inner detector using an algorithm [43] which, in Pb þPb collisions, is optimized for the high-occupancy conditions [44]. They are required to meet several criteria intended to select primary charged particles [6]. All reconstructed tracks with pT>1GeV, jηj<2.5and Δϕ>3π=4are considered. The charged-particle yield is corrected for reconstruction and selection inefficiency on a per-track basis using a simulation-derived efficiency which varies PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-2 from 0.6 to 0.8 depending on both detector occupancy and track kinematics. A small correction, typically 1%–2%, accounts for the contribution of reconstructed tracks not associated with primary particles. The pch Tresolution is found to have a negligible effect (≲0.3%) on the results and is not corrected for. The contribution to the yield from UE particles in Pb þPb collisions is estimated using MB events and is statistically subtracted from the measured yields. For each Zevent in data, 40–160 unique MB events are used for this estimation. These MB events are centrality matched to within 1% in peripheral events, decreasing to within 0.1% in central events. Furthermore, to match the azimuthal modulation of the UE, the elliptic flow angles [28] in the Z data event and in the matching MB event must match within π=16. The signal-to-background ratio varies strongly with pch T,pZ T, and Pb þPb centrality, with a minimum of 5×10−3at the lowest pch Tand pZ Tvalues in the most central events. In pp events, the UE is known to have larger activity in a Zevent than in an ordinary MB pp collision [45,46], necessitating a different procedure. Here, the UE is determined in events with 1<p Z T<12 GeVin the azimuthal region perpendicular to the Zboson to avoid the contribution from jet particles. The data are further corrected for bin migration resulting from the finite resolution in the pZ Tmeasurement. This is evaluated by comparing the per-Zcharged-particle yields, where the Zselection is made at the generator level, with those after reconstruction, and is typically a 2%–3% correction. The primary sources of systematic uncertainty in the yield measurement are those affecting the Zboson reconstruction, those affecting the charged-particle selection, and those affecting the UE background estimation and subtraction. The uncertainties associated with the electron and muon energy scales are evaluated using a common set of uncertainties [42,47], and are typically negligible (≲1%) except at high pch T. Those associated with lepton trigger and selection efficiency determination are smaller than the ones related to the energy scale. Several sources of trackingrelated uncertainty are considered, which are described in previous measurements of charged-particle fragmentation functions, and of which the largest is the sensitivity to the track selection criteria, which is 2%–3% [6,48]. The uncertainty in the determination of the UE background yield is evaluated by propagating the statistical uncertainty of the UE estimation in MB events. The sensitivity of the UE estimation to the matching criteria for the elliptic flow [27] angles between signal and MB events, or the additional requirement to match the triangular flow angles, are investigated. However, since these variations give statistically compatible results, they are not included. As a check of the background subtraction procedure, the full analysis is performed on simulated Z events overlaid with HIJING [49] Pb þPb background, and compared with the generator-level distributions. An absolute uncertainty in the background estimation of 0.3% is derived using this study. Finally, an internal consistency check is performed by comparing the per-Zyields between the electron and muon decay channels. A difference was observed in the 15 < pZ T<30 GeV selections and was included as an uncertainty of at most 4% in pp and 14% in central Pb þPb events. For the yields at low pch Tand in central events, the uncertainty from the UE determination is dominant and can be as large as 30%. For yields at high pch Tand in lowermultiplicity events, the uncertainties associated with the track selection and the lepton energy scale are typically dominant, and as large as 5%. Uncertainty sources common to Pb þPb and pp are canceled in the IAA ratio when possible, such that the resulting measurement is dominated by uncertainties specific to Pb þPb events. In all cases, the statistical uncertainty in the IAA is larger than the total systematic uncertainty. Figure 1presents the charged-particle yield per Zboson, in Pb þPb and pp events, as a function of pch T, for the selection Δϕ>3π=4. The yields in Pb þPb collisions are observed to be modified relative to those in pp collisions. [GeV] ch T p 2− 10 1− 10 1 10 2 10 3 10 ] -1 ) [GeVφΔ d T p / d ch N 2 ) (d Z (1/N 12345671020304060 ATLAS -1 = 5.02 TeV, 260 pbs,pp -1 = 5.02 TeV, 1.4-1.7 nb NN sPb+Pb, 1) × < 30 GeV ( Z T p 15 < 10) × < 60 GeV ( Z T p 30 < ) 2 10 × > 60 GeV ( Z T p pp 30-80% 10-30% 0-10% FIG. 1. Charged-particle yield per Zboson as a function of pch T, for the selection Δϕ>3π=4, reported for 15 <p Z T<30 GeV, 30 <p Z T<60 GeV, and pZ T>60 GeV. Results are shown for pp events and the three centralities of Pb þPb events. These are offset horizontally around the bin centers, which are located between the 0%–10% and 10%–30% points, for visibility. The vertical bars and boxes correspond to the statistical and systematic uncertainties of the data. PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-3 To better reveal the modification, Fig. 2presents IAA values, the ratios of yields in Pb þPb events to those in pp events. The IAA values are suppressed below unity at large pch T, with a systematically larger suppression in more central events and for lower pZ Tselections. For pZ T>60 GeV, the IAA values at low pch T, less than 2–3 GeV, are significantly different than those at high pch T, and typically greater than unity. Lower pZ Tselections are compatible with a similar increase at low pch T, although the uncertainties limit the significance of this enhancement. The suppression over a wide range of pch Tvalues, and the general enhancement of the IAA above unity at lower pch T, are qualitatively similar to those observed in the ratios of jet fragmentation functions in photon-tagged events [12]. Figure 3compares the IAA in 0%–10% Pb þPb events with the following theoretical calculations, where available, which use the same kinematic selections as the data: (1) a perturbative calculation within the framework of softcollinear effective field theory with Glauber gluons (SCETG) in the soft-gluon-emission (energy-loss) limit, with jet-medium coupling g¼2.00.2[50,51]; (2) the Hybrid Strong/Weak Coupling model [52], which combines initial production using PYTHIA 8with a parameterization of energy loss derived from holographic methods, including backreaction effects; (3) JEWEL, an MC event generator which simulates QCD jet evolution in heavy-ion collisions, including radiative and elastic energy loss processes, and configured to include medium recoils [53]; and (4) a coupled linearized Boltzmann transport (COLBT) and hydrodynamics model [54,55], which includes jet-induced medium excitations. All models qualitatively reproduce the degree of suppression at large pch T, greater than 10 GeV. The Hybrid model, JEWEL and COLBT qualitatively capture the increase at low pch T.For these three models, removing the backreaction, medium recoils, and jet-induced medium excitations, respectively, results in a significant underprediction of the data in this region. Several of these models also capture the relative difference in the IAA between the three pZ Tselections. A full evaluation of theoretical uncertainties is needed to further discriminate between the mechanisms of energy loss and medium response in the data. 0.4 0.6 1 2 3 0.3 0.6 1 2 [GeV] ch T p 12345671020304060 0.2 0.3 0.6 1 ATLAS -1 = 5.02 TeV, 260 pbs,pp -1 = 5.02 TeV, 1.4-1.7 nb NN sPb+Pb, > 60 GeV Z T p < 60 GeV Z T p30 < < 30 GeV Z T p15 < pp/30-80% pp/10-30% pp/0-10% ) ch T p ( AA I FIG. 2. Ratio of the charged-particle yield in Pb þPb collisions to that in pp collisions, IAA, as a function of charged-particle pch T, for the selection Δϕ>3π=4. The vertical bars and boxes correspond to the statistical and systematic uncertainties of the data. The 0%–10% and 30%–80% data are offset horizontally for visibility. [GeV] ch T p ) ch T p ( AA I 123456710 0.2 0.3 0.4 0.5 0.7 1 2 3 4 5 < 30 GeV Z T pData, 15 < ATLAS pp⁄0-10% Pb+Pb [GeV] ch T p 2 3 4 5 6 7 10 20 < 60 GeV Z T pData, 30 < -1 = 5.02 TeV, 260 pbs,pp -1 = 5.02 TeV, 1.4-1.7 nb NN sPb+Pb, [GeV] ch T p 2 3 4 5 6 7 10 20 30 40 > 60 GeV Z T pData, Hybrid Model CoLBT-hydro 0.2)±2.0=g ( G SCET JEWEL FIG. 3. The IAA ratio as a function of pch Tin data compared with theoretical calculations (see text), for the selection Δϕ>3π=4. The vertical bars and boxes correspond to the statistical and systematic uncertainties, while the shaded bands represent the theoretical uncertainty (statistical for JEWEL, Hybrid, and COLBT-hydro, parametric for SCETG). The IAA is shown for 0%–10% Pb þPb events for pZ T¼15–30 GeV (left), 30–60 GeV (center), and >60 GeV (right). PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-4 In conclusion, this Letter presents a measurement of charged-particle yields produced in the azimuthal direction opposite to a Zboson with pT>15 GeV. The measurement is performed using 260 pb−1of pp and up to 1.7nb−1 of Pb þPb collision data at 5.02 TeV with the ATLAS detector at the Large Hadron Collider. The per-Zyields are systematically modified in Pb þPb collisions compared with pp collisions due to the interactions between the parton shower and the hot and dense QGP medium. The charged-particle pTdistribution in Pb þPb collisions is softer than that in pp collisions, with a suppression at high pch Tand an enhancement at low pch T. The degree of modification varies with Pb þPb event centrality, consistent with a larger and hotter QGP being created in more central events. At high pZ T, the modification pattern is qualitatively similar to that observed in measurements of photon-tagged jet fragmentation functions. In addition to the particular theoretical comparisons presented here, the data will allow systematic tests of models across centrality and pZ Tselections. The data can also test energy loss models for low-pTpartons that are otherwise difficult to access experimentally at the LHC, but which are valuable for direct comparison to future measurements at RHIC. We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; GSRT, Greece; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russia Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, Compute Canada and CRC, Canada; ERC, ERDF, Horizon 2020, Marie Skłodowska-Curie Actions and COST, European Union; Investissements d’Avenir Labex, Investissements d’Avenir Idex and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Göran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref. [56]. [1] W. Busza, K. Rajagopal, and W. van der Schee, Heavy ion collisions: The big picture and the big questions, Annu. Rev. Nucl. Part. Sci. 68, 339 (2018). [2] ATLAS Collaboration, Measurement of jet pTcorrelations in Pb þPb and pp collisions at ffiffiffiffiffiffiffiffi sNN p¼2.76 TeV with the ATLAS detector, Phys. Lett. B 774, 379 (2017). [3] CMS Collaboration, Jet momentum dependence of jet quenching in PbPb collisions at ffiffiffiffiffiffiffiffi sNN p¼2.76 TeV, Phys. Lett. B 712, 176 (2012). [4] ATLAS Collaboration, Measurement of photon-jet transverse momentum correlations in 5.02 TeV Pb þPb and pp collisions with ATLAS, Phys. Lett. B 789, 167 (2019). [5] CMS Collaboration, Study of jet quenching with isolatedphoton+jet correlations in PbPb and pp collisions at ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV, Phys. Lett. B 785, 14 (2018). [6] ATLAS Collaboration, Measurement of jet fragmentation in Pb þPb and pp collisions at ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV with the ATLAS detector, Phys. Rev. C 98, 024908 (2018). [7] CMS Collaboration, Measurement of jet fragmentation in PbPb and pp collisions at ffiffiffiffiffiffiffiffi sNN p¼2.76 TeV, Phys. Rev. C 90, 024908 (2014). [8] ATLAS Collaboration, Measurement of ZBoson Production in Pb-Pb Collisions at ffiffiffiffiffiffiffiffi sNN p¼2.76 TeV with the ATLAS Detector, Phys. Rev. Lett. 110, 022301 (2013). [9] ATLAS Collaboration, Zboson production in Pb þPb collisions at ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV measured by the ATLAS experiment, Phys. Lett. B 802, 135262 (2020). [10] V. Kartvelishvili, R. Kvatadze, and R. Shanidze, On Z and Zþjet production in heavy ion collisions, Phys. Lett. B 356, 589 (1995). [11] R. B. Neufeld and I. Vitev, Z0-Tagged Jet Event Asymmetry in Heavy-Ion Collisions at the CERN Large Hadron Collider, Phys. Rev. Lett. 108, 242001 (2012). [12] ATLAS Collaboration, Comparison of Fragmentation Functions for Jets Dominated by Light Quarks and Gluons from pp and Pb þPb Collisions in ATLAS, Phys. Rev. Lett. 123, 042001 (2019). [13] CMS Collaboration, Observation of Medium-Induced Modifications of Jet Fragmentation in Pb-Pb Collisions at ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV Using Isolated Photon-Tagged Jets, Phys. Rev. Lett. 121, 242301 (2018). PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-5 [14] PHENIX Collaboration, Medium Modification of Jet Fragmentation in Au þAu Collisions at ffiffiffiffiffiffiffiffi sNN p¼200 GeV Measured in Direct Photon-Hadron Correlations, Phys. Rev. Lett. 111, 032301 (2013). [15] STAR Collaboration, Jet-like correlations with directphoton and neutral-pion triggers at ffiffiffiffiffiffiffiffi sNN p¼200 GeV, Phys. Lett. B 760, 689 (2016). [16] CMS Collaboration, Study of Jet Quenching with Zþjet Correlations in Pb-Pb and pp Collisions at ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV, Phys. Rev. Lett. 119, 082301 (2017). [17] ATLAS uses a right-handed coordinate system with its origin at the nominal interaction point (IP) in the center of the detector and the zaxis along the beam pipe. Cylindrical coordinates ðr; ϕÞare used in the transverse plane, ϕ being the azimuthal angle around the zaxis. The pseudorapidity is defined in terms of the polar angle θas η¼−ln tanðθ=2Þ. [18] STAR Collaboration, Experimental studies of di-jet survival and surface emission bias in Au þAu collisions via angular correlations with respect to back-to-back leading hadrons, Phys. Rev. C 83 (2011) 061901. [19] T. Renk, Biased showers: A common conceptual framework for the interpretation of high-PTobservables in heavy-ion collisions, Phys. Rev. C 88, 054902 (2013). [20] J. G. Milhano and K. C. Zapp, Origins of the di-jet asymmetry in heavy-ion collisions, Eur. Phys. J. C 76, 288 (2016). [21] ATLAS Collaboration, The ATLAS experiment at the CERN large hadron collider, J. Instrum. 3, S08003 (2008). [22] ATLAS Collaboration, ATLAS insertable B-layer technical design report, CERN Report No. ATLAS-TDR-19, 2010, https://cds.cern.ch/record/1291633. [23] B. Abbott et al., Production and integration of the ATLAS insertable B-layer, J. Instrum. 13, T05008 (2018). [24] ATLAS Collaboration, Performance of the ATLAS trigger system in 2015, Eur. Phys. J. C 77, 317 (2017). [25] ATLAS Collaboration, Performance of electron and photon triggers in ATLAS during LHC Run 2, Eur. Phys. J. C 80,47 (2020). [26] ATLAS Collaboration, Prompt and non-prompt J=ψand ψð2SÞsuppression at high transverse momentum in 5.02 TeV Pb þPb collisions with the ATLAS experiment, Eur. Phys. J. C 78, 762 (2018). [27] ATLAS Collaboration, Measurement of the azimuthal anisotropy of charged particles produced in ffiffiffiffiffiffiffiffi sNN p¼ 5.02 TeV Pb þPb collisions with the ATLAS detector, Eur. Phys. J. C 78, 997 (2018). [28] ATLAS Collaboration, Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in Pb þPb collisions at ffiffiffiffiffiffiffiffi sNN p¼5.02 TeV with the ATLAS detector, Phys. Lett. B 807 (2020) 135595. [29] ATLAS Collaboration, Track reconstruction performance of the ATLAS inner detector at ffiffiffi s p¼13 TeV, CERN Report No. ATL-PHYS-PUB-2015-018, 2015, https://cds.cern.ch/ record/2037683. [30] S. Agostinelli et al., GEANT 4—A simulation toolkit, Nucl. Instrum. Methods Phys. Res., Sect. A 506, 250 (2003). [31] ATLAS Collaboration, The ATLAS simulation infrastructure, Eur. Phys. J. C 70, 823 (2010). [32] P. Nason, A new method for combining NLO QCD with shower Monte Carlo algorithms, J. High Energy Phys. 11 (2004) 040. [33] S. Frixione, P. Nason, and C. Oleari, Matching NLO QCD computations with parton shower simulations: The POWHEG method, J. High Energy Phys. 11 (2007) 070. [34] S. Alioli, P. Nason, C. Oleari, and E. Re, NLO vector-boson production matched with shower in POWHEG ,J. High Energy Phys. 07 (2008) 060. [35] S. Alioli, P. Nason, C. Oleari, and E. Re, A general framework for implementing NLO calculations in shower Monte Carlo programs: The POWHEG BOX ,J. High Energy Phys. 06 (2010) 043. [36] T. Sjöstrand, S. Mrenna, and P. Z. Skands, A brief introduction to PYTHIA 8.1,Comput. Phys. Commun. 178, 852 (2008). [37] H.-L. Lai, M. Guzzi, J. Huston, Z. Li, P. M. Nadolsky, J. Pumplin, and C. P. Yuan, New parton distributions for collider physics, Phys. Rev. D 82, 074024 (2010). [38] J. Pumplin, D. R. Stump, J. Huston, H.-L. Lai, P. Nadolsky, and W.-K. Tung, New generation of parton distributions with uncertainties from global QCD analysis, J. High Energy Phys. 07 (2002) 012. [39] ATLAS Collaboration, Measurement of the Z=γboson transverse momentum distribution in pp collisions at ffiffiffi s p¼7TeV with the ATLAS detector, J. High Energy Phys. 09 (2014) 145. [40] ATLAS Collaboration, Measurements of Wand Zboson production in pp collisions at ffiffiffi s p¼5.02 TeV with the ATLAS detector, Eur. Phys. J. C 79, 128 (2019); , Erratum, Eur. Phys. J. C 79, 374 (2019). [41] ATLAS Collaboration, Electron reconstruction and identification in the ATLAS experiment using the 2015 and 2016 LHC proton-proton collision data at ffiffiffi s p¼13 TeV, Eur. Phys. J. C 79, 639 (2019). [42] ATLAS Collaboration, Muon reconstruction performance of the ATLAS detector in proton-proton collision data at ffiffiffi s p¼13 TeV, Eur. Phys. J. C 76, 292 (2016). [43] ATLAS Collaboration, Performance of the ATLAS track reconstruction algorithms in dense environments in LHC Run 2, Eur. Phys. J. C 77, 673 (2017). [44] ATLAS Collaboration, Measurement of charged-particle spectra in Pb þPb collisions at ffiffiffiffiffiffiffiffi sNN p¼2.76 TeV with the ATLAS detector at the LHC, J. High Energy Phys. 09 (2015) 050. [45] CMS Collaboration, Measurement of the underlying event activity in inclusive Zboson production in proton-proton collisions at ffiffiffi s p¼13 TeV, J. High Energy Phys. 07 (2018) 032. [46] ATLAS Collaboration, Measurement of distributions sensitive to the underlying event in inclusive Zboson production in pp collisions at ffiffiffi s p¼13 TeV with the ATLAS detector, Eur. Phys. J. C 79, 666 (2019). [47] ATLAS Collaboration, Electron and photon performance measurements with the ATLAS detector using the 2015– 2017 LHC proton-proton collision data, J. Instrum. 14, P12006 (2019). [48] ATLAS Collaboration, Study of the material of the ATLAS inner detector for Run 2 of the LHC, J. Instrum. 12, P12009 (2017). PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-6 [49] M. Gyulassy and X.-N. Wang, HIJING 1.0: A Monte Carlo program for parton and particle production in high-energy hadronic and nuclear collisions, Comput. Phys. Commun. 83, 307 (1994). [50] Y.-T. Chien, A. Emerman, Z.-B. Kang, G. Ovanesyan, and I. Vitev, Jet quenching from QCD evolution, Phys. Rev. D 93, 074030 (2016). [51] H. T. Li and I. Vitev, Jet charge modification in finite QCD matter, Phys. Rev. D 101, 076020 (2020). [52] J. Casalderrey-Solana, D. C. Gulhan, J. G. Milhano, D. Pablos, and K. Rajagopal, Predictions for boson-jet observables and fragmentation function ratios from a hybrid strong/weak coupling model for jet quenching, J. High Energy Phys. 03 (2016) 053. [53] R. Kunnawalkam Elayavalli and K. C. Zapp, Simulating Vþjet processes in heavy ion collisions with JEWEL, Eur. Phys. J. C 76, 695 (2016). [54] W. Chen, S. Cao, T. Luo, L.-G. Pang, and X.-N. Wang, Effects of jet-induced medium excitation in γ-hadron correlation in A þA collisions, Phys. Lett. B 777,86 (2018). [55] W. Chen, S. Cao, T. Luo, L.-G. Pang, and X.-N. Wang, Medium modification of γ-jet fragmentation functions in Pb þPb collisions at LHC, Phys. Lett. B 810, 135783 (2020). [56] ATLAS Collaboration, ATLAS computing acknowledgements, CERN Report No. ATL-SOFT-PUB-2020-001, 2020, https://cds.cern.ch/record/2717821. G. Aad,102 B. Abbott,128 D. C. Abbott,103 A. Abed Abud,36 K. Abeling,53 D. K. Abhayasinghe,94 S. H. Abidi,167 O. S. AbouZeid,40 N. L. Abraham,156 H. Abramowicz,161 H. Abreu,160 Y. Abulaiti,6B. S. Acharya,67a,67b,b B. Achkar,53 L. Adam,100 C. Adam Bourdarios,5L. Adamczyk,84a L. Adamek,167 J. Adelman,121 M. Adersberger,114 A. Adiguzel,12c S. Adorni,54 T. Adye,143 A. A. Affolder,145 Y. Afik,160 C. Agapopoulou,65 M. N. Agaras,38 A. Aggarwal,119 C. Agheorghiesei,28c J. A. Aguilar-Saavedra,139f,139a,c A. Ahmad,36 F. Ahmadov,80 W. S. Ahmed,104 X. Ai,18 G. Aielli,74a,74b S. Akatsuka,86 M. Akbiyik,100 T. P. A. Åkesson,97 E. Akilli,54 A. V. Akimov,111 K. Al Khoury,65 G. L. Alberghi,23b,23a J. Albert,176 M. J. Alconada Verzini,161 S. Alderweireldt,36 M. Aleksa,36 I. N. Aleksandrov,80 C. Alexa,28b T. Alexopoulos,10 A. Alfonsi,120 F. Alfonsi,23b,23a M. Alhroob,128 B. Ali,141 S. Ali,158 M. Aliev,166 G. Alimonti,69a C. Allaire,36 B. M. M. Allbrooke,156 B. W. Allen,131 P. P. Allport,21 A. Aloisio,70a,70b F. Alonso,89 C. Alpigiani,148 E. Alunno Camelia,74a,74b M. Alvarez Estevez,99 M. G. Alviggi,70a,70b Y. Amaral Coutinho,81b A. Ambler,104 L. Ambroz,134 C. Amelung,36 D. Amidei,106 S. P. Amor Dos Santos,139a S. Amoroso,46 C. S. Amrouche,54 F. An,79 C. Anastopoulos,149 N. Andari,144 T. Andeen,11 J. K. Anders,20 S. Y. Andrean,45a,45b A. Andreazza,69a,69b V. Andrei,61a C. R. Anelli,176 S. Angelidakis,9A. Angerami,39 A. V. Anisenkov,122b,122a A. Annovi,72a C. Antel,54 M. T. Anthony,149 E. Antipov,129 M. Antonelli,51 D. J. A. Antrim,18 F. Anulli,73a M. Aoki,82 J. A. Aparisi Pozo,174 M. A. Aparo,156 L. Aperio Bella,46 N. Aranzabal,36 V. Araujo Ferraz,81a R. Araujo Pereira,81b C. Arcangeletti,51 A. T. H. Arce,49 F. A. Arduh,89 J-F. Arguin,110 S. Argyropoulos,52 J.-H. Arling,46 A. J. Armbruster,36 A. Armstrong,171 O. Arnaez,167 H. Arnold,120 Z. P. Arrubarrena Tame,114 G. Artoni,134 H. Asada,117 K. Asai,126 S. Asai,163 T. Asawatavonvanich,165 N. Asbah,59 E. M. Asimakopoulou,172 L. Asquith,156 J. Assahsah,35d K. Assamagan,26b R. Astalos,29a R. J. Atkin,33a M. Atkinson,173 N. B. Atlay,19 H. Atmani,65 P. A. Atmasiddha,106 K. Augsten,141 V. A. Austrup,182 G. Avolio,36 M. K. Ayoub,15a G. Azuelos,110,d D. Babal,29a H. Bachacou,144 K. Bachas,162 F. Backman,45a,45b P. Bagnaia,73a,73b M. Bahmani,85 H. Bahrasemani,152 A. J. Bailey,174 V. R. Bailey,173 J. T. Baines,143 C. Bakalis,10 O. K. Baker,183 P. J. Bakker,120 E. Bakos,16 D. Bakshi Gupta,8S. Balaji,157 R. Balasubramanian,120 E. M. Baldin,122b,122a P. Balek,180 F. Balli,144 W. K. Balunas,134 J. Balz,100 E. Banas,85 M. Bandieramonte,138 A. Bandyopadhyay,24 Sw. Banerjee,181,e L. Barak,161 W. M. Barbe,38 E. L. Barberio,105 D. Barberis,55b,55a M. Barbero,102 G. Barbour,95 T. Barillari,115 M-S. Barisits,36 J. Barkeloo,131 T. Barklow,153 R. Barnea,160 B. M. Barnett,143 R. M. Barnett,18 Z. Barnovska-Blenessy,60a A. Baroncelli,60a G. Barone,26b A. J. Barr,134 L. Barranco Navarro,45a,45b F. Barreiro,99 J. Barreiro Guimarães da Costa,15a U. Barron,161 S. Barsov,137 F. Bartels,61a R. Bartoldus,153 G. Bartolini,102 A. E. Barton,90 P. Bartos,29a A. Basalaev,46 A. Basan,100 A. Bassalat,65,f M. J. Basso,167 R. L. Bates,57 S. Batlamous,35e J. R. Batley,32 B. Batool,151 M. Battaglia,145 M. Bauce,73a,73b F. Bauer,144 P. Bauer,24 H. S. Bawa,31 A. Bayirli,12c J. B. Beacham,49 T. Beau,135 P. H. Beauchemin,170 F. Becherer,52 P. Bechtle,24 H. C. Beck,53 H. P. Beck,20,g K. Becker,178 C. Becot,46 A. Beddall,12d A. J. Beddall,12a V. A. Bednyakov,80 M. Bedognetti,120 C. P. Bee,155 T. A. Beermann,182 M. Begalli,81b M. Begel,26b A. Behera,155 J. K. Behr,46 F. Beisiegel,24 M. Belfkir,5 A. S. Bell,95 G. Bella,161 L. Bellagamba,23b A. Bellerive,34 P. Bellos,9K. Beloborodov,122b,122a K. Belotskiy,112 N. L. Belyaev,112 D. Benchekroun,35a N. Benekos,10 Y. Benhammou,161 D. P. Benjamin,6M. Benoit,26b J. R. Bensinger,27 S. Bentvelsen,120 L. Beresford,134 M. Beretta,51 D. Berge,19 E. Bergeaas Kuutmann,172 N. Berger,5B. Bergmann,141 PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-7 L. J. Bergsten,27 J. Beringer,18 S. Berlendis,7G. Bernardi,135 C. Bernius,153 F. U. Bernlochner,24 T. Berry,94 P. Berta,100 A. Berthold,48 I. A. Bertram,90 O. Bessidskaia Bylund,182 N. Besson,144 A. Bethani,101 S. Bethke,115 A. Betti,42 A. J. Bevan,93 J. Beyer,115 S. Bhatta,155 D. S. Bhattacharya,177 P. Bhattarai,27 V. S. Bhopatkar,6R. Bi,138 R. M. Bianchi,138 O. Biebel,114 D. Biedermann,19 R. Bielski,36 K. Bierwagen,100 N. V. Biesuz,72a,72b M. Biglietti,75a T. R. V. Billoud,141 M. Bindi,53 A. Bingul,12d C. Bini,73a,73b S. Biondi,23b,23a C. J. Birch-sykes,101 M. Birman,180 T. Bisanz,36 J. P. Biswal,3 D. Biswas,181,e A. Bitadze,101 C. Bittrich,48 K. Bjørke,133 T. Blazek,29a I. Bloch,46 C. Blocker,27 A. Blue,57 U. Blumenschein,93 G. J. Bobbink,120 V. S. Bobrovnikov,122b,122a S. S. Bocchetta,97 D. Bogavac,14 A. G. Bogdanchikov,122b,122a C. Bohm,45a V. Boisvert,94 P. Bokan,172,53 T. Bold,84a A. E. Bolz,61b M. Bomben,135 M. Bona,93 J. S. Bonilla,131 M. Boonekamp,144 C. D. Booth,94 A. G. Borb´ely,57 H. M. Borecka-Bielska,91 L. S. Borgna,95 A. Borisov,123 G. Borissov,90 D. Bortoletto,134 D. Boscherini,23b M. Bosman,14 J. D. Bossio Sola,104 K. Bouaouda,35a J. Boudreau,138 E. V. Bouhova-Thacker,90 D. Boumediene,38 A. Boveia,127 J. Boyd,36 D. Boye,33c I. R. Boyko,80 A. J. Bozson,94 J. Bracinik,21 N. Brahimi,60d G. Brandt,182 O. Brandt,32 F. Braren,46 B. Brau,103 J. E. Brau,131 W. D. Breaden Madden,57 K. Brendlinger,46 R. Brener,160 L. Brenner,36 R. Brenner,172 S. Bressler,180 B. Brickwedde,100 D. L. Briglin,21 D. Britton,57 D. Britzger,115 I. Brock,24 R. Brock,107 G. Brooijmans,39 W. K. Brooks,146d E. Brost,26b P. A. Bruckman de Renstrom,85 B. Brüers,46 D. Bruncko,29b A. Bruni,23b G. Bruni,23b M. Bruschi,23b N. Bruscino,73a,73b L. Bryngemark,153 T. Buanes,17 Q. Buat,155 P. Buchholz,151 A. G. Buckley,57 I. A. Budagov,80 M. K. Bugge,133 F. Bührer,52 O. Bulekov,112 B. A. Bullard,59 T. J. Burch,121 S. Burdin,91 C. D. Burgard,120 A. M. Burger,129 B. Burghgrave,8J. T. P. Burr,46 C. D. Burton,11 J. C. Burzynski,103 V. Büscher,100 E. Buschmann,53 P. J. Bussey,57 J. M. Butler,25 C. M. Buttar,57 J. M. Butterworth,95 P. Butti,36 W. Buttinger,143 C. J. Buxo Vazquez,107 A. Buzatu,158 A. R. Buzykaev,122b,122a G. Cabras,23b,23a S. Cabrera Urbán,174 D. Caforio,56 H. Cai,138 V. M. M. Cairo,153 O. Cakir,4a N. Calace,36 P. Calafiura,18 G. Calderini,135 P. Calfayan,66 G. Callea,57 L. P. Caloba,81b A. Caltabiano,74a,74b S. Calvente Lopez,99 D. Calvet,38 S. Calvet,38 T. P. Calvet,102 M. Calvetti,72a,72b R. Camacho Toro,135 S. Camarda,36 D. Camarero Munoz,99 P. Camarri,74a,74b M. T. Camerlingo,75a,75b D. Cameron,133 C. Camincher,36 S. Campana,36 M. Campanelli,95 A. Camplani,40 V. Canale,70a,70b A. Canesse,104 M. Cano Bret,78 J. Cantero,129 T. Cao,161 Y. Cao,173 M. D. M. Capeans Garrido,36 M. Capua,41b,41a R. Cardarelli,74a F. Cardillo,174 G. Carducci,41b,41a I. Carli,142 T. Carli,36 G. Carlino,70a B. T. Carlson,138 E. M. Carlson,176,168a L. Carminati,69a,69b R. M. D. Carney,153 S. Caron,119 E. Carquin,146d S. Carrá,46 G. Carratta,23b,23a J. W. S. Carter,167 T. M. Carter,50 M. P. Casado,14,h A. F. Casha,167 E. G. Castiglia,183 F. L. Castillo,174 L. Castillo Garcia,14 V. Castillo Gimenez,174 N. F. Castro,139a,139e A. Catinaccio,36 J. R. Catmore,133 A. Cattai,36 V. Cavaliere,26b V. Cavasinni,72a,72b E. Celebi,12b F. Celli,134 K. Cerny,130 A. S. Cerqueira,81a A. Cerri,156 L. Cerrito,74a,74b F. Cerutti,18 A. Cervelli,23b,23a S. A. Cetin,12b Z. Chadi,35a D. Chakraborty,121 J. Chan,181 W. S. Chan,120 W. Y. Chan,91 J. D. Chapman,32 B. Chargeishvili,159b D. G. Charlton,21 T. P. Charman,93 M. Chatterjee,20 C. C. Chau,34 S. Che,127 S. Chekanov,6 S. V. Chekulaev,168a G. A. Chelkov,80,i B. Chen,79 C. Chen,60a C. H. Chen,79 H. Chen,15c H. Chen,26b J. Chen,60a J. Chen,39 J. Chen,27 S. Chen,136 S. J. Chen,15c X. Chen,15b Y. Chen,60a Y-H. Chen,46 H. C. Cheng,63a H. J. Cheng,15a A. Cheplakov,80 E. Cheremushkina,123 R. Cherkaoui El Moursli,35e E. Cheu,7K. Cheung,64 T. J. A. Cheval´erias,144 L. Chevalier,144 V. Chiarella,51 G. Chiarelli,72a G. Chiodini,68a A. S. Chisholm,21 A. Chitan,28b I. Chiu,163 Y. H. Chiu,176 M. V. Chizhov,80 K. Choi,11 A. R. Chomont,73a,73b Y. Chou,103 Y. S. Chow,120 L. D. Christopher,33e M. C. Chu,63a X. Chu,15a,15d J. Chudoba,140 J. J. Chwastowski,85 L. Chytka,130 D. Cieri,115 K. M. Ciesla,85 V. Cindro,92 I. A. Cioară,28b A. Ciocio,18 F. Cirotto,70a,70b Z. H. Citron,180,j M. Citterio,69a D. A. Ciubotaru,28b B. M. Ciungu,167 A. Clark,54 P. J. Clark,50 S. E. Clawson,101 C. Clement,45a,45b Y. Coadou,102 M. Cobal,67a,67c A. Coccaro,55b J. Cochran,79 R. Coelho Lopes De Sa,103 H. Cohen,161 A. E. C. Coimbra,36 B. Cole,39 A. P. Colijn,120 J. Collot,58 P. Conde Muiño,139a,139h S. H. Connell,33c I. A. Connelly,57 S. Constantinescu,28b F. Conventi,70a,k A. M. Cooper-Sarkar,134 F. Cormier,175 K. J. R. Cormier,167 L. D. Corpe,95 M. Corradi,73a,73b E. E. Corrigan,97 F. Corriveau,104,l M. J. Costa,174 F. Costanza,5D. Costanzo,149 G. Cowan,94 J. W. Cowley,32 J. Crane,101 K. Cranmer,125 R. A. Creager,136 S. Cr´ep´e-Renaudin,58 F. Crescioli,135 M. Cristinziani,24 V. Croft,170 G. Crosetti,41b,41a A. Cueto,5T. Cuhadar Donszelmann,171 H. Cui,15a,15d A. R. Cukierman,153 W. R. Cunningham,57 S. Czekierda,85 P. Czodrowski,36 M. M. Czurylo,61b M. J. Da Cunha Sargedas De Sousa,60b J. V. Da Fonseca Pinto,81b C. Da Via,101 W. Dabrowski,84a F. Dachs,36 T. Dado,47 S. Dahbi,33e T. Dai,106 C. Dallapiccola,103 M. Dam,40 G. D’amen,26b V. D’Amico,75a,75b J. Damp,100 J. R. Dandoy,136 M. F. Daneri,30 M. Danninger,152 V. Dao,36 G. Darbo,55b O. Dartsi,5A. Dattagupta,131 T. Daubney,46 S. D’Auria,69a,69b C. David,168b T. Davidek,142 D. R. Davis,49 I. Dawson,149 K. De,8R. De Asmundis,70a M. De Beurs,120 S. De Castro,23b,23a N. De Groot,119 P. de Jong,120 PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-8 H. De la Torre,107 A. De Maria,15c D. De Pedis,73a A. De Salvo,73a U. De Sanctis,74a,74b M. De Santis,74a,74b A. De Santo,156 J. B. De Vivie De Regie,65 D. V. Dedovich,80 A. M. Deiana,42 J. Del Peso,99 Y. Delabat Diaz,46 D. Delgove,65 F. Deliot,144 C. M. Delitzsch,7M. Della Pietra,70a,70b D. Della Volpe,54 A. Dell’Acqua,36 L. Dell’Asta,74a,74b M. Delmastro,5 C. Delporte,65 P. A. Delsart,58 S. Demers,183 M. Demichev,80 G. Demontigny,110 S. P. Denisov,123 L. D’Eramo,121 D. Derendarz,85 J. E. Derkaoui,35d F. Derue,135 P. Dervan,91 K. Desch,24 K. Dette,167 C. Deutsch,24 M. R. Devesa,30 P. O. Deviveiros,36 F. A. Di Bello,73a,73b A. Di Ciaccio,74a,74b L. Di Ciaccio,5W. K. Di Clemente,136 C. Di Donato,70a,70b A. Di Girolamo,36 G. Di Gregorio,72a,72b A. Di Luca,76a,76b B. Di Micco,75a,75b R. Di Nardo,75a,75b K. F. Di Petrillo,59 R. Di Sipio,167 C. Diaconu,102 F. A. Dias,120 T. Dias Do Vale,139a M. A. Diaz,146a F. G. Diaz Capriles,24 J. Dickinson,18 M. Didenko,166 E. B. Diehl,106 J. Dietrich,19 S. Díez Cornell,46 C. Diez Pardos,151 A. Dimitrievska,18 W. Ding,15b J. Dingfelder,24 S. J. Dittmeier,61b F. Dittus,36 F. Djama,102 T. Djobava,159b J. I. Djuvsland,17 M. A. B. Do Vale,147 M. Dobre,28b D. Dodsworth,27 C. Doglioni,97 J. Dolejsi,142 Z. Dolezal,142 M. Donadelli,81c B. Dong,60c J. Donini,38 A. D’onofrio,15c M. D’Onofrio,91 J. Dopke,143 A. Doria,70a M. T. Dova,89 A. T. Doyle,57 E. Drechsler,152 E. Dreyer,152 T. Dreyer,53 A. S. Drobac,170 D. Du,60b T. A. du Pree,120 Y. Duan,60d F. Dubinin,111 M. Dubovsky,29a A. Dubreuil,54 E. Duchovni,180 G. Duckeck,114 O. A. Ducu,36 D. Duda,115 A. Dudarev,36 A. C. Dudder,100 E. M. Duffield,18 M. D’uffizi,101 L. Duflot,65 M. Dührssen,36 C. Dülsen,182 M. Dumancic,180 A. E. Dumitriu,28b M. Dunford,61a S. Dungs,47 A. Duperrin,102 H. Duran Yildiz,4a M. Düren,56 A. Durglishvili,159b D. Duschinger,48 B. Dutta,46 D. Duvnjak,1G. I. Dyckes,136 M. Dyndal,36 S. Dysch,101 B. S. Dziedzic,85 M. G. Eggleston,49 T. Eifert,8G. Eigen,17 K. Einsweiler,18 T. Ekelof,172 H. El Jarrari,35e V. Ellajosyula,172 M. Ellert,172 F. Ellinghaus,182 A. A. Elliot,93 N. Ellis,36 J. Elmsheuser,26b M. Elsing,36 D. Emeliyanov,143 A. Emerman,39 Y. Enari,163 M. B. Epland,49 J. Erdmann,47 A. Ereditato,20 P. A. Erland,85 M. Errenst,182 M. Escalier,65 C. Escobar,174 O. Estrada Pastor,174 E. Etzion,161 G. E. Evans,139a H. Evans,66 M. O. Evans,156 A. Ezhilov,137 F. Fabbri,57 L. Fabbri,23b,23a V. Fabiani,119 G. Facini,178 R. M. Fakhrutdinov,123 S. Falciano,73a P. J. Falke,24 S. Falke,36 J. Faltova,142 Y. Fang,15a Y. Fang,15a G. Fanourakis,44 M. Fanti,69a,69b M. Faraj,67a,67c A. Farbin,8A. Farilla,75a E. M. Farina,71a,71b T. Farooque,107 S. M. Farrington,50 P. Farthouat,36 F. Fassi,35e P. Fassnacht,36 D. Fassouliotis,9M. Faucci Giannelli,50 W. J. Fawcett,32 L. Fayard,65 O. L. Fedin,137,m W. Fedorko,175 A. Fehr,20 M. Feickert,173 L. Feligioni,102 A. Fell,149 C. Feng,60b M. Feng,49 M. J. Fenton,171 A. B. Fenyuk,123 S. W. Ferguson,43 J. Ferrando,46 A. Ferrari,172 P. Ferrari,120 R. Ferrari,71a D. E. Ferreira de Lima,61b A. Ferrer,174 D. Ferrere,54 C. Ferretti,106 F. Fiedler,100 A. Filipčič,92 F. Filthaut,119 K. D. Finelli,25 M. C. N. Fiolhais,139a,139c,n L. Fiorini,174 F. Fischer,114 J. Fischer,100 W. C. Fisher,107 T. Fitschen,21 I. Fleck,151 P. Fleischmann,106 T. Flick,182 B. M. Flierl,114 L. Flores,136 L. R. Flores Castillo,63a F. M. Follega,76a,76b N. Fomin,17 J. H. Foo,167 G. T. Forcolin,76a,76b B. C. Forland,66 A. Formica,144 F. A. Förster,14 A. C. Forti,101 E. Fortin,102 M. G. Foti,134 D. Fournier,65 H. Fox,90 P. Francavilla,72a,72b S. Francescato,73a,73b M. Franchini,23b,23a S. Franchino,61a D. Francis,36 L. Franco,5L. Franconi,20 M. Franklin,59 G. Frattari,73a,73b A. N. Fray,93 P. M. Freeman,21 B. Freund,110 W. S. Freund,81b E. M. Freundlich,47 D. C. Frizzell,128 D. Froidevaux,36 J. A. Frost,134 M. Fujimoto,126 C. Fukunaga,164 E. Fullana Torregrosa,174 T. Fusayasu,116 J. Fuster,174 A. Gabrielli,23b,23a A. Gabrielli,36 S. Gadatsch,54 P. Gadow,115 G. Gagliardi,55b,55a L. G. Gagnon,110 G. E. Gallardo,134 E. J. Gallas,134 B. J. Gallop,143 R. Gamboa Goni,93 K. K. Gan,127 S. Ganguly,180 J. Gao,60a Y. Gao,50 Y. S. Gao,31,o F. M. Garay Walls,146a C. García,174 J. E. García Navarro,174 J. A. García Pascual,15a C. Garcia-Argos,52 M. Garcia-Sciveres,18 R. W. Gardner,37 N. Garelli,153 S. Gargiulo,52 C. A. Garner,167 V. Garonne,133 S. J. Gasiorowski,148 P. Gaspar,81b A. Gaudiello,55b,55a G. Gaudio,71a P. Gauzzi,73a,73b I. L. Gavrilenko,111 A. Gavrilyuk,124 C. Gay,175 G. Gaycken,46 E. N. Gazis,10 A. A. Geanta,28b C. M. Gee,145 C. N. P. Gee,143 J. Geisen,97 M. Geisen,100 C. Gemme,55b M. H. Genest,58 C. Geng,106 S. Gentile,73a,73b S. George,94 T. Geralis,44 L. O. Gerlach,53 P. Gessinger-Befurt,100 G. Gessner,47 S. Ghasemi,151 M. Ghasemi Bostanabad,176 M. Ghneimat,151 A. Ghosh,65 A. Ghosh,78 B. Giacobbe,23b S. Giagu,73a,73b N. Giangiacomi,23b,23a P. Giannetti,72a A. Giannini,70a,70b G. Giannini,14 S. M. Gibson,94 M. Gignac,145 D. T. Gil,84b B. J. Gilbert,39 D. Gillberg,34 G. Gilles,182 N. E. K. Gillwald,46 D. M. Gingrich,3,d M. P. Giordani,67a,67c P. F. Giraud,144 G. Giugliarelli,67a,67c D. Giugni,69a F. Giuli,74a,74b S. Gkaitatzis,162 I. Gkialas,9,p E. L. Gkougkousis,14 P. Gkountoumis,10 L. K. Gladilin,113 C. Glasman,99 J. Glatzer,14 P. C. F. Glaysher,46 A. Glazov,46 G. R. Gledhill,131 I. Gnesi,41b,q M. Goblirsch-Kolb,27 D. Godin,110 S. Goldfarb,105 T. Golling,54 D. Golubkov,123 A. Gomes,139a,139b R. Goncalves Gama,53 R. Gonçalo,139a,139c G. Gonella,131 L. Gonella,21 A. Gongadze,80 F. Gonnella,21 J. L. Gonski,39 S. González de la Hoz,174 S. Gonzalez Fernandez,14 R. Gonzalez Lopez,91 C. Gonzalez Renteria,18 R. Gonzalez Suarez,172 S. Gonzalez-Sevilla,54 G. R. Gonzalvo Rodriguez,174 L. Goossens,36 N. A. Gorasia,21 P. A. Gorbounov,124 H. A. Gordon,26b B. Gorini,36 E. Gorini,68a,68b A. Gorišek,92 A. T. Goshaw,49 PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-9 19Institut für Physik, Humboldt Universität zu Berlin, Berlin, Germany 20Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland 21School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom 22aFacultad de Ciencias y Centro de Investigaciónes, Universidad Antonio Nariño, Bogotá, Colombia 22bDepartamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia, Colombia 23aINFN Bologna and Universita’di Bologna, Dipartimento di Fisica, Italy 23bINFN Sezione di Bologna, Italy 24Physikalisches Institut, Universität Bonn, Bonn, Germany 25Department of Physics, Boston University, Boston, Massachusetts, USA 26aUniversity of Colorado Boulder, Department of Physics, Colorado, USA 26bPhysics Department, Brookhaven National Laboratory, Upton, New York, USA 27Department of Physics, Brandeis University, Waltham, Massachusetts, USA 28aTransilvania University of Brasov, Brasov, Romania 28bHoria Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania 28cDepartment of Physics, Alexandru Ioan Cuza University of Iasi, Iasi, Romania 28dNational Institute for Research and Development of Isotopic and Molecular Technologies, Physics Department, Cluj-Napoca, Romania 28eUniversity Politehnica Bucharest, Bucharest, Romania 28fWest University in Timisoara, Timisoara, Romania 29aFaculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovak Republic 29bDepartment of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic 30Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina 31California State University, California, USA 32Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom 33aDepartment of Physics, University of Cape Town, Cape Town, South Africa 33biThemba Labs, Western Cape, South Africa 33cDepartment of Mechanical Engineering Science, University of Johannesburg, Johannesburg, South Africa 33dUniversity of South Africa, Department of Physics, Pretoria, South Africa 33eSchool of Physics, University of the Witwatersrand, Johannesburg, South Africa 34Department of Physics, Carleton University, Ottawa ON, Canada 35aFacult´e des Sciences Ain Chock, R´eseau Universitaire de Physique des Hautes Energies—Universit´e Hassan II, Casablanca, Morocco 35bFacult´e des Sciences, Universit´e Ibn-Tofail, K´enitra, Morocco 35cFacult´e des Sciences Semlalia, Universit´e Cadi Ayyad, LPHEA-Marrakech, Morocco 35dFacult´e des Sciences, Universit´e Mohamed Premier and LPTPM, Oujda, Morocco 35eFacult´e des sciences, Universit´e Mohammed V, Rabat, Morocco 36CERN, Geneva, Switzerland 37Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA 38LPC, Universit´e Clermont Auvergne, CNRS/IN2P3, Clermont-Ferrand, France 39Nevis Laboratory, Columbia University, Irvington, New York, USA 40Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark 41aDipartimento di Fisica, Universit`a della Calabria, Rende, Italy 41bINFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Italy 42Physics Department, Southern Methodist University, Dallas, Texas, USA 43Physics Department, University of Texas at Dallas, Richardson, Texas, USA 44National Centre for Scientific Research “Demokritos”, Agia Paraskevi, Greece 45aDepartment of Physics, Stockholm University, Sweden 45bOskar Klein Centre, Stockholm, Sweden 46Deutsches Elektronen-Synchrotron DESY, Hamburg and Zeuthen, Germany 47Lehrstuhl für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany 48Institut für Kernund Teilchenphysik, Technische Universität Dresden, Dresden, Germany 49Department of Physics, Duke University, Durham, North Carolina, USA 50SUPA—School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom 51INFN e Laboratori Nazionali di Frascati, Frascati, Italy 52Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany 53II. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany 54D´epartement de Physique Nucl´eaire et Corpusculaire, Universit´e de Gen`eve, Gen`eve, Switzerland 55aDipartimento di Fisica, Universit`a di Genova, Genova, Italy 55bINFN Sezione di Genova, Italy 56II. Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-16 57SUPA—School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom 58LPSC, Universit´e Grenoble Alpes, CNRS/IN2P3, Grenoble INP, Grenoble, France 59Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, Massachusetts, USA 60aDepartment of Modern Physics and State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China 60bInstitute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao, China 60cSchool of Physics and Astronomy, Shanghai Jiao Tong University, KLPPAC-MoE, SKLPPC, Shanghai, China 60dTsung-Dao Lee Institute, Shanghai, China 61aKirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany 61bPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany 62Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan 63aDepartment of Physics, Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China 63bDepartment of Physics, University of Hong Kong, Hong Kong, China 63cDepartment of Physics and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China 64Department of Physics, National Tsing Hua University, Hsinchu, Taiwan 65IJCLab, Universit´e Paris-Saclay, CNRS/IN2P3, 91405, Orsay, France 66Department of Physics, Indiana University, Bloomington, Indiana, USA 67aINFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy 67bICTP, Trieste, Italy 67cDipartimento Politecnico di Ingegneria e Architettura, Universit`a di Udine, Udine, Italy 68aINFN Sezione di Lecce, Italy 68bDipartimento di Matematica e Fisica, Universit`a del Salento, Lecce, Italy 69aINFN Sezione di Milano, Italy 69bDipartimento di Fisica, Universit`a di Milano, Milano, Italy 70aINFN Sezione di Napoli, Italy 70bDipartimento di Fisica, Universit`a di Napoli, Napoli, Italy 71aINFN Sezione di Pavia, Italy 71bDipartimento di Fisica, Universit`a di Pavia, Pavia, Italy 72aINFN Sezione di Pisa, Italy 72bDipartimento di Fisica E. Fermi, Universit`a di Pisa, Pisa, Italy 73aINFN Sezione di Roma, Italy 73bDipartimento di Fisica, Sapienza Universit`a di Roma, Roma, Italy 74aINFN Sezione di Roma Tor Vergata, Italy 74bDipartimento di Fisica, Universit`a di Roma Tor Vergata, Roma, Italy 75aINFN Sezione di Roma Tre, Italy 75bDipartimento di Matematica e Fisica, Universit`a Roma Tre, Roma, Italy 76aINFN-TIFPA, Italy 76bUniversit`a degli Studi di Trento, Trento, Italy 77Institut für Astround Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria 78University of Iowa, Iowa City, Iowa, USA 79Department of Physics and Astronomy, Iowa State University, Ames, Iowa, USA 80Joint Institute for Nuclear Research, Dubna, Russia 81aDepartamento de Engenharia El´etrica, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, Brazil 81bUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil 81cInstituto de Física, Universidade de São Paulo, São Paulo, Brazil 82KEK, High Energy Accelerator Research Organization, Tsukuba, Japan 83Graduate School of Science, Kobe University, Kobe, Japan 84aAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland 84bMarian Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland 85Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland 86Faculty of Science, Kyoto University, Kyoto, Japan 87Kyoto University of Education, Kyoto, Japan 88Research Center for Advanced Particle Physics and Department of Physics, Kyushu University, Fukuoka, Japan 89Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina 90Physics Department, Lancaster University, Lancaster, United Kingdom 91Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom 92Department of Experimental Particle Physics, Jožef Stefan Institute and Department of Physics, University of Ljubljana, Ljubljana, Slovenia PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-17 93School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom 94Department of Physics, Royal Holloway University of London, Egham, United Kingdom 95Department of Physics and Astronomy, University College London, London, United Kingdom 96Louisiana Tech University, Ruston, Louisiana, USA 97Fysiska institutionen, Lunds universitet, Lund, Sweden 98Centre de Calcul de l’Institut National de Physique Nucl´eaire et de Physique des Particules (IN2P3), Villeurbanne, France 99Departamento de Física Teorica C-15 and CIAFF, Universidad Autónoma de Madrid, Madrid, Spain 100Institut für Physik, Universität Mainz, Mainz, Germany 101School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom 102CPPM, Aix-Marseille Universit´e, CNRS/IN2P3, Marseille, France 103Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA 104Department of Physics, McGill University, Montreal QC, Canada 105School of Physics, University of Melbourne, Victoria, Australia 106Department of Physics, University of Michigan, Ann Arbor, Michigan, USA 107Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA 108B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus 109Research Institute for Nuclear Problems of Byelorussian State University, Minsk, Belarus 110Group of Particle Physics, University of Montreal, Montreal QC, Canada 111P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia 112National Research Nuclear University MEPhI, Moscow, Russia 113D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow, Russia 114Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany 115Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany 116Nagasaki Institute of Applied Science, Nagasaki, Japan 117Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan 118Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, USA 119Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands 120Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands 121Department of Physics, Northern Illinois University, DeKalb, Illinois, USA 122aBudker Institute of Nuclear Physics and NSU, SB RAS, Novosibirsk, Russia 122bNovosibirsk State University Novosibirsk, Russia 123Institute for High Energy Physics of the National Research Centre Kurchatov Institute, Protvino, Russia 124Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”, Moscow, Russia 125Department of Physics, New York University, New York, New York, USA 126Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo, Japan 127Ohio State University, Columbus, Ohio, USA 128Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma, USA 129Department of Physics, Oklahoma State University, Stillwater, Oklahoma, USA 130Palacký University, RCPTM, Joint Laboratory of Optics, Olomouc, Czech Republic 131Institute for Fundamental Science, University of Oregon, Eugene, Oregon, USA 132Graduate School of Science, Osaka University, Osaka, Japan 133Department of Physics, University of Oslo, Oslo, Norway 134Department of Physics, Oxford University, Oxford, United Kingdom 135LPNHE, Sorbonne Universit´e, Universit´e de Paris, CNRS/IN2P3, Paris, France 136Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania, USA 137Konstantinov Nuclear Physics Institute of National Research Centre “Kurchatov Institute”, PNPI, St. Petersburg, Russia 138Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA 139aLaboratório de Instrumentação e Física Experimental de Partículas—LIP, Lisboa, Portugal 139bDepartamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal 139cDepartamento de Física, Universidade de Coimbra, Coimbra, Portugal 139dCentro de Física Nuclear da Universidade de Lisboa, Lisboa, Portugal 139eDepartamento de Física, Universidade do Minho, Braga, Portugal 139fDepartamento de Física Teórica y del Cosmos, Universidad de Granada, Granada (Spain), Spain 139gDep Física and CEFITEC of Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal 139hInstituto Superior T´ecnico, Universidade de Lisboa, Lisboa, Portugal 140Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic 141Czech Technical University in Prague, Prague, Czech Republic 142Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic 143Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-18 144IRFU, CEA, Universit´e Paris-Saclay, Gif-sur-Yvette, France 145Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, California, USA 146aDepartamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile 146bUniversidad Andres Bello, Department of Physics, Santiago, Chile 146cInstituto de Alta Investigación, Universidad de Tarapacá, Chile 146dDepartamento de Física, Universidad T´ecnica Federico Santa María, Valparaíso, Chile 147Universidade Federal de São João del Rei (UFSJ), São João del Rei, Brazil 148Department of Physics, University of Washington, Seattle, Washington, USA 149Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom 150Department of Physics, Shinshu University, Nagano, Japan 151Department Physik, Universität Siegen, Siegen, Germany 152Department of Physics, Simon Fraser University, Burnaby BC, Canada 153SLAC National Accelerator Laboratory, Stanford, California, USA 154Physics Department, Royal Institute of Technology, Stockholm, Sweden 155Departments of Physics and Astronomy, Stony Brook University, Stony Brook, New York, USA 156Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom 157School of Physics, University of Sydney, Sydney, Australia 158Institute of Physics, Academia Sinica, Taipei, Taiwan 159aE. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia 159bHigh Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia 160Department of Physics, Technion, Israel Institute of Technology, Haifa, Israel 161Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel 162Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece 163International Center for Elementary Particle Physics and Department of Physics, University of Tokyo, Tokyo, Japan 164Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan 165Department of Physics, Tokyo Institute of Technology, Tokyo, Japan 166Tomsk State University, Tomsk, Russia 167Department of Physics, University of Toronto, Toronto ON, Canada 168aTRIUMF, Vancouver BC, Canada 168bDepartment of Physics and Astronomy, York University, Toronto ON, Canada 169Division of Physics and Tomonaga Center for the History of the Universe, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan 170Department of Physics and Astronomy, Tufts University, Medford, Massachusetts, USA 171Department of Physics and Astronomy, University of California Irvine, Irvine, California, USA 172Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden 173Department of Physics, University of Illinois, Urbana, Illinois, USA 174Instituto de Física Corpuscular (IFIC), Centro Mixto Universidad de Valencia—CSIC, Valencia, Spain 175Department of Physics, University of British Columbia, Vancouver BC, Canada 176Department of Physics and Astronomy, University of Victoria, Victoria BC, Canada 177Fakultät für Physik und Astronomie, Julius-Maximilians-Universität Würzburg, Würzburg, Germany 178Department of Physics, University of Warwick, Coventry, United Kingdom 179Waseda University, Tokyo, Japan 180Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, Israel 181Department of Physics, University of Wisconsin, Madison, Wisconsin, USA 182Fakultät für Mathematik und Naturwissenschaften, Fachgruppe Physik, Bergische Universität Wuppertal, Wuppertal, Germany 183Department of Physics, Yale University, New Haven, Connecticut, USA aDeceased. bAlso at Department of Physics, King’s College London, London, United Kingdom. cAlso at Instituto de Fisica Teorica, IFT-UAM/CSIC, Madrid, Spain. dAlso at TRIUMF, Vancouver BC, Canada. eAlso at Department of Physics and Astronomy, University of Louisville, Louisville, Kentucky, USA. fAlso at Physics Department, An-Najah National University, Nablus, Palestine. gAlso at Department of Physics, University of Fribourg, Fribourg, Switzerland. hAlso at Departament de Fisica de la Universitat Autonoma de Barcelona, Barcelona, Spain. iAlso at Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia. jAlso at Department of Physics, Ben Gurion University of the Negev, Beer Sheva, Israel. kAlso at Universita di Napoli Parthenope, Napoli, Italy. lAlso at Institute of Particle Physics (IPP), Canada. mAlso at Department of Physics, St. Petersburg State Polytechnical University, St. Petersburg, Russia. PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-19 nAlso at Borough of Manhattan Community College, City University of New York, New York, New York, USA. oAlso at Department of Physics, California State University, Fresno, USA. pAlso at Department of Financial and Management Engineering, University of the Aegean, Chios, Greece. qAlso at Centro Studi e Ricerche Enrico Fermi, Italy. rAlso at Department of Physics, California State University, East Bay, USA. sAlso at Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain. tAlso at Graduate School of Science, Osaka University, Osaka, Japan. uAlso at Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany. vAlso at University of Chinese Academy of Sciences (UCAS), Beijing, China. wAlso at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan. xAlso at CERN, Geneva, Switzerland. yAlso at Joint Institute for Nuclear Research, Dubna, Russia. zAlso at Hellenic Open University, Patras, Greece. aaAlso at The City College of New York, New York, New York, USA. bbAlso at Dipartimento di Matematica, Informatica e Fisica, Universit`a di Udine, Udine, Italy. ccAlso at Department of Physics, California State University, Sacramento, USA. ddAlso at D´epartement de Physique Nucl´eaire et Corpusculaire, Universit´e de Gen`eve, Gen`eve, Switzerland. eeAlso at Institute for Nuclear Research and Nuclear Energy (INRNE) of the Bulgarian Academy of Sciences, Sofia, Bulgaria. ffAlso at Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia. ggAlso at Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany. hhAlso at CPPM, Aix-Marseille Universit´e, CNRS/IN2P3, Marseille, France. iiAlso at National Research Nuclear University MEPhI, Moscow, Russia. jjAlso at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary. kkAlso at Giresun University, Faculty of Engineering, Giresun, Turkey. llAlso at Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA. PHYSICAL REVIEW LETTERS 126, 072301 (2021) 072301-20