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Measurements of transverse kinematic imbalance in muon neutrino charged-current interactions on argon with a single proton and no pions in the final state with SBND
Abstract
This letter presents the first neutrino-argon cross-section measurement from the Short-Baseline Near Detector (SBND) at the Fermi National Accelerator Laboratory. We report the nominal flux-averaged single-differential cross sections of muon neutrino charged-current interactions on argon with a single proton and no pions in the final state as functions of the transverse kinematic imbalance variables. Using a subset of Run~1 data corresponding to 8.8×1019 protons-on-target, we select 12,804 signal candidates with a purity of 91%. The extracted cross sections discriminate strongly among event-generator predictions, owing to the high statistics and the design of the analysis. Among the compared models, none successfully describes all three variables, with the largest discrepancies in the transverse missing momentum variable. These results set new benchmarks for neutrino-argon interaction modeling, which is crucial for high-precision measurements at current and future accelerator neutrino experiments.
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BibTeX
@misc{acciarri2026measurements,
title = {{Measurements of transverse kinematic imbalance in muon neutrino charged-current interactions on argon with a single proton and no pions in the final state with SBND}},
author = {R. Acciarri and L. Aliaga-Soplin and D. Andrade Aldana and C. Andreopoulos and A. Antonakis and S. Balasubramanian and A. Barnard and V. Basque and J. R. Bateman and A. Beever and B. Behera and M. Betancourt and A. Bhat and M. Bishai and A. Blake and B. Bogart and D. Brailsford and A. Brandt and S. Brickner and M. B. Brunetti and G. A. N. Buzzard and L. Camilleri and D. Caratelli and D. Carber and B. Carlson and M. F. Carneiro and R. Castillo Fernandez and F. Cavanna and A. Chappell and H. Chen and S. Chung and R. Coackley and J. I. Crespo-Anadón and C. Cuesta and Y. Dabburi and O. Dalager and M. Dall'Olio and S. K. Das and M. Del Tutto and Z. Djurcic and V. do Lago Pimentel and S. Dominguez-Vidales and M. Donnachie and M. Dubnowski and K. Duffy and S. Dytman and A. Ereditato and E. Espinoza and J. J. Evans and A. C. Ezeribe and C. Fan and A. Filkins and B. Fleming and W. Foreman and D. Franco and G. Fricano and I. Furic and A. P. Furmanski and S. Gao and D. Garcia-Gamez},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.39042},
eprint = {2610.39042},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.39042},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Measurements of transverse kinematic imbalance in muon neutrino charged-current interactions on argon with a single proton and no pions in the final state with SBND
AU - R. Acciarri
AU - L. Aliaga-Soplin
AU - D. Andrade Aldana
AU - C. Andreopoulos
AU - A. Antonakis
AU - S. Balasubramanian
AU - A. Barnard
AU - V. Basque
AU - J. R. Bateman
AU - A. Beever
AU - B. Behera
AU - M. Betancourt
AU - A. Bhat
AU - M. Bishai
AU - A. Blake
AU - B. Bogart
AU - D. Brailsford
AU - A. Brandt
AU - S. Brickner
AU - M. B. Brunetti
AU - G. A. N. Buzzard
AU - L. Camilleri
AU - D. Caratelli
AU - D. Carber
AU - B. Carlson
AU - M. F. Carneiro
AU - R. Castillo Fernandez
AU - F. Cavanna
AU - A. Chappell
AU - H. Chen
AU - S. Chung
AU - R. Coackley
AU - J. I. Crespo-Anadón
AU - C. Cuesta
AU - Y. Dabburi
AU - O. Dalager
AU - M. Dall'Olio
AU - S. K. Das
AU - M. Del Tutto
AU - Z. Djurcic
AU - V. do Lago Pimentel
AU - S. Dominguez-Vidales
AU - M. Donnachie
AU - M. Dubnowski
AU - K. Duffy
AU - S. Dytman
AU - A. Ereditato
AU - E. Espinoza
AU - J. J. Evans
AU - A. C. Ezeribe
AU - C. Fan
AU - A. Filkins
AU - B. Fleming
AU - W. Foreman
AU - D. Franco
AU - G. Fricano
AU - I. Furic
AU - A. P. Furmanski
AU - S. Gao
AU - D. Garcia-Gamez
PY - 2026
DA - 2026/10/28
PB - arXiv
DO - 10.48550/arxiv.2610.39042
UR - https://arxiv.org/abs/2610.39042
AB - This letter presents the first neutrino-argon cross-section measurement from the Short-Baseline Near Detector (SBND) at the Fermi National Accelerator Laboratory. We report the nominal flux-averaged single-differential cross sections of muon neutrino charged-current interactions on argon with a single proton and no pions in the final state as functions of the transverse kinematic imbalance variables. Using a subset of Run~1 data corresponding to 8.8×10^19 protons-on-target, we select 12,804 signal candidates with a purity of 91%. The extracted cross sections discriminate strongly among event-generator predictions, owing to the high statistics and the design of the analysis. Among the compared models, none successfully describes all three variables, with the largest discrepancies in the transverse missing momentum variable. These results set new benchmarks for neutrino-argon interaction modeling, which is crucial for high-precision measurements at current and future accelerator neutrino experiments.
ER -