Recent Cross-Section Results From MicroBooNE

Recent Cross-Section Results From MicroBooNE Jairo H. Rodriguez Rondon On behalf of the MicroBooNE collaboration XXI Workshop on Neutrino Telescopes Padova, Italy, October 1st 2025 Jairo H. Rodriguez Rondon 2 •Neutrino physics is in a great moment pushing towards high precision measurements to refine oscillation parameter and to determine the neutrino mass hierarchy. •Liquid Argon Time Projection Chambers (LArTPCs) has become the state-of the art detectors in neutrino physics. •Precise neutrino cross-section measurements are essential to understand interactions with complex nucleus •LArTPC detector of ~180 tons. •10m x 2m stainless steel cathode. (-70kV) •3 separated anode planes. (~8200 wires) Overview Jairo H. Rodriguez Rondon 3 Important of Cross-Section Measurements Jairo H. Rodriguez Rondon 3 Important of Cross-Section Measurements Jairo H. Rodriguez Rondon 4 Important of Cross-Section Measurements Jairo H. Rodriguez Rondon 5 http://news.fnal.gov/2021/05/icarus-gets-ready-to-fly/19-0107-02-sbn-infographic-icarus-2/ LArTPC Experiments Long-BaselineShort-Baseline Jairo H. Rodriguez Rondon 5 •Short-Baseline neutrino (SBN) program, is a series of LArTPCs detector aiming to investigate and measure the properties of neutrino interactions. http://news.fnal.gov/2021/05/icarus-gets-ready-to-fly/19-0107-02-sbn-infographic-icarus-2/ LArTPC Experiments Short-Baseline Long-Baseline Jairo H. Rodriguez Rondon 5 •Short-Baseline neutrino (SBN) program, is a series of LArTPCs detector aiming to investigate and measure the properties of neutrino interactions. •LArTPC are one of the most suitable detector technologies to measure complex topologies with high spatial resolution and ns-scale timing, excellent particle identification, and 3D reconstruction capabilities. http://news.fnal.gov/2021/05/icarus-gets-ready-to-fly/19-0107-02-sbn-infographic-icarus-2/ LArTPC Experiments Long-BaselineShort-Baseline Jairo H. Rodriguez Rondon 5 •Short-Baseline neutrino (SBN) program, is a series of LArTPCs detector aiming to investigate and measure the properties of neutrino interactions. •LArTPC are one of the most suitable detector technologies to measure complex topologies with high spatial resolution and ns-scale timing, excellent particle identification, and 3D reconstruction capabilities. •MicroBooNE has a large neutrino-argon dataset recorded (~700K neutrino interactions) over its operational period. http://news.fnal.gov/2021/05/icarus-gets-ready-to-fly/19-0107-02-sbn-infographic-icarus-2/ LArTPC Experiments Long-BaselineShort-Baseline Jairo H. Rodriguez Rondon 11 Jairo H. Rodriguez Rondon 11 Investigate MiniBooNE low energy excess •MiniBooNE reports a 4.8 𝜎 excess of single electromagnetic showers at low energy range. •MicroBooNE, due its intrinsic capability to distinguish electrons and gamma, will allow to further investigate this anomaly. •Different hypotheses has been proposed for the still unexplained excess, even though, MicroBooNE analyses has contributing with strong constrains for many of them. Jairo H. Rodriguez Rondon 11 Searches in BSM physics •First search for dark-sector explanations of MiniBooNE anomaly. •Recent results include limits on Heavy Neutral Leptons (PRL 132, 041801 (2024)), Dark Tridents (PRL 132, 241801 (2024)), and Higgs Portal Scalars (arXiv:2501.08052). •Many more searches in progress: axion-like particles, millicharged particles, etc. Investigate MiniBooNE low energy excess •MiniBooNE reports a 4.8 𝜎 excess of single electromagnetic showers at low energy range. •MicroBooNE, due its intrinsic capability to distinguish electrons and gamma, will allow to further investigate this anomaly. •Different hypotheses has been proposed for the still unexplained excess, even though, MicroBooNE analyses has contributing with strong constrains for many of them. Jairo H. Rodriguez Rondon 11 Searches in BSM physics •First search for dark-sector explanations of MiniBooNE anomaly. •Recent results include limits on Heavy Neutral Leptons (PRL 132, 041801 (2024)), Dark Tridents (PRL 132, 241801 (2024)), and Higgs Portal Scalars (arXiv:2501.08052). •Many more searches in progress: axion-like particles, millicharged particles, etc. Investigate MiniBooNE low energy excess •MiniBooNE reports a 4.8 𝜎 excess of single electromagnetic showers at low energy range. •MicroBooNE, due its intrinsic capability to distinguish electrons and gamma, will allow to further investigate this anomaly. •Different hypotheses has been proposed for the still unexplained excess, even though, MicroBooNE analyses has contributing with strong constrains for many of them. Jairo H. Rodriguez Rondon 12 •MicroBooNE has recently published results on Novel Particle Identification Techniques and Detector Physics. Jairo H. Rodriguez Rondon 12 •MicroBooNE has recently published results on Novel Particle Identification Techniques and Detector Physics. •Novel Particle Identification Techniques: •Neutron identification through n-Ar inelastic proton production. •MeV-scale “Blips” which has a wide range of applications as: improving calorimetry, muon/pion separation, neutron tagging, lower particle threshold, etc. Phys. Rev. D 111, 032005 Eur. Phys. J. C 84, 1052 Jairo H. Rodriguez Rondon 12 •MicroBooNE has recently published results on Novel Particle Identification Techniques and Detector Physics. •Novel Particle Identification Techniques: •Neutron identification through n-Ar inelastic proton production. •MeV-scale “Blips” which has a wide range of applications as: improving calorimetry, muon/pion separation, neutron tagging, lower particle threshold, etc. •Detector Physics: •ns-scale timing: Achieve neutrino interactions time resolution of O(1ns), powerful tool for non-beam background rejection Phys. Rev. D 108, 052010 Phys. Rev. D 111, 032005 Eur. Phys. J. C 84, 1052 Jairo H. Rodriguez Rondon 13 MicroBooNE has built a chain of tools that makes cross-section analyses possible: Jairo H. Rodriguez Rondon 13 MicroBooNE has built a chain of tools that makes cross-section analyses possible: •MicroBooNE has a self-developed tune in for CCQE and CCMEC based on T2K data (PhysRevD.105.072001). Jairo H. Rodriguez Rondon 13 MicroBooNE has built a chain of tools that makes cross-section analyses possible: •MicroBooNE has a self-developed tune in for CCQE and CCMEC based on T2K data (PhysRevD.105.072001). •Development of a novel approach to assess detector related systematic uncertainties (Eur. Phys. J. C (2022) 82, 454). Jairo H. Rodriguez Rondon 16 Pion Production Results - 𝜈𝑒𝐶𝐶1𝜋± •First measurement of 𝜈𝑒𝑐𝑐1𝜋± on argon. •This result use the full NuMI dataset, with higher 𝜈𝑒 content. •The cross section measured in this analysis shows good modeling within the reported uncertainties. •The data slightly prefer the higher cross sections predicted by NEUT, NuWro, and GiBUU compared with the lower cross sections predicted by GENIE •116 events candidates were found. (78% 𝜈𝑒 and 22% ҧ𝜈𝑒 predicted) Phys. Rev. Lett. 135, 061802 Jairo H. Rodriguez Rondon 17 Pion Production Results - 𝜈𝜇𝐶𝐶1𝜋± •Full MicroBooNE dataset, first measurement of pion momentum. •Signs of mismodelling at low Q2 and for high pion momenta driven by final state interactions. •The total cross-section measured in data shows agreement with GiBUU 2025, while GENIE and NuWro are the closest predictions for the differential cross sections reported. •This analysis relies on BDTs to identify particles in the final state of the interaction. •This analysis reported 6816 event selected. arXiv:2509.03628 Jairo H. Rodriguez Rondon 18 𝑪𝑪𝟎𝝅 Results - 1D & 2D 𝜈𝜇𝐶𝐶𝑁𝑝0𝜋 •This work enables correlated multi-target cross-section measurements using Cherenkov detectors in the same neutrino beam (BNB). •Dominated by QE-like interactions. •The average total uncertainty reported is below 20%. •The GiBUU 2025 and NEUT models show best performance for the extracted 1D and 2D cross sections as a function of 𝑝µ and cos 𝜃µ arXiv:2507.00921 Jairo H. Rodriguez Rondon 19 Rare Channels Results •First measurement of muon neutrino interactions with charged kaon in the final state. •Key measurement for the improvement of the identification and mitigation of atmospheric neutrino backgrounds for nucleon decay searches for DUNE. •The event selection was based on BDTs for kaon identification. •This work reported 10 events from a dataset of 6.88 ×1020 POT. •The measured cross section shows agreement, within the total reported uncertainty (54.1%), with different neutrino generators. arXiv:2503.00291 Jairo H. Rodriguez Rondon 20 More results to come! ONGOING CC inclusive 𝜈𝜇𝐶𝐶 inclusive @ NuMI 𝜈𝑒/𝜈𝜇ratios @ BNB, NuMI ҧ𝜈𝑒@ NuMI Pion production 𝜈𝜇𝐶𝐶1𝜋+@ BNB & NuMI 𝜈𝜇𝐶𝐶𝑁𝜋@ NuMI 1D 𝜈𝜇𝐶𝐶𝜋0@ BNB 2D 𝜈𝜇𝐶𝐶/𝑁𝐶 𝜋0@ BNB 2D 𝜈𝑒,𝜇𝑁𝐶𝜋0@ BNB CC/NC 0π 2D 𝜈𝜇𝐶𝐶1𝑝0𝜋 GKI @ BNB 1D & 2D 𝜈𝜇𝐶𝐶0𝜋@ BNB 2D 𝜈𝜇𝐶𝐶𝑁𝑝0𝜋 @ BNB 1D 𝜈𝑒𝐶𝐶0𝜋𝑁𝑝 @ NuMI 1D 𝜈𝜇𝑁𝐶1𝑝0𝜋 @ BNB Rare channels & novel techniques MeV-scale physics @ BNB Low-energy neutrons @ BNB Multi-pion production @ BNB Jairo H. Rodriguez Rondon 21 Summary •MicroBooNE is still running a diverse and comprehensive cross section program. •MicroBooNE actively analyzing full dataset: •5 years of data, two neutrino beams •Showcasing result from different neutrino interaction channels, development of novel event selection and analysis techniques •Exciting new results out across all areas, with many more in the works! Jairo H. Rodriguez Rondon 22 Thank you!