Adjusting Neutrino Interaction Models and Evaluating Uncertainties using   NOvA Near Detector Data

NOvA Collaboration: M. A. Acero (2); P. Adamson (12); G. Agam (19); L.; Aliaga (12); T. Alion (39); V. Allakhverdian (26); N. Anfimov (26); A.; Antoshkin (26); L. Asquith (39); A. Aurisano (6); A. Back (24); C. Backhouse; (44); M. Baird (20; 39; 45); N. Balashov (26); P. Baldi (25); B. A.; Bambah (17); S. Bashar (43); K. Bays (4; 19); S. Bending (44); R.; Bernstein (12); V. Bhatnagar (32); B. Bhuyan (14); J. Bian (25; 30); J.; Blair (16); A. C. Booth (39); P. Bour (9); R. Bowles (20); C. Bromberg (28),; N. Buchanan (8); A. Butkevich (22); S. Calvez (8); T. J. Carroll (42; 48),; E. Catano-Mur (24; 47); S. Childress (12); B. C. Choudhary (11); T. E.; Coan (37); M. Colo (47); L. Corwin (36); L. Cremonesi (44); G. S. Davies (31; and 20); P. F. Derwent (12); P. Ding (12); Z. Djurcic (1); D. Doyle (8); E.; C. Dukes (45); P. Dung (42); H. Duyang (35); S. Edayath (7); R. Ehrlich (45),; M. Elkins (24); G. J. Feldman (15); P. Filip (23); W. Flanagan (10); J. Franc; (9); M. J. Frank (34; 45); H. R. Gallagher (43); R. Gandrajula (28); F. Gao; (33); S. Germani (44); A. Giri (18); R. A. Gomes (13); M. C. Goodman (1); V.; Grichine (27); M. Groh (20); R. Group (45); B. Guo (35); A. Habig (29); F.; Hakl (21); J. Hartnell (39); R. Hatcher (12); A. Hatzikoutelis (41); K.; Heller (30); V Hewes (6); A. Himmel (12); A. Holin (44); B. Howard (20); J.; Huang (42); J. Hylen (12); F. Jediny (9); C. Johnson (8); M. Judah (8); I.; Kakorin (26); D. Kalra (32); D. M. Kaplan (19); R. Keloth (7); O. Klimov; (26); L. W. Koerner (16); L. Kolupaeva (26); S. Kotelnikov (27); Ch.; Kullenberg (26); A. Kumar (32); C. D. Kuruppu (35); V. Kus (9); T. Lackey; (20); K. Lang (42); L. Li (25); S. Lin (8); M. Lokajicek (23); S. Luchuk; (22); K. Maan (32); S. Magill (1); W. A. Mann (43); M. L. Marshak (30); M.; Martinez-Casales (24); V. Matveev (22); B. Mayes (39); D. P. M\'endez (39),; M. D. Messier (20); H. Meyer (46); T. Miao (12); W. H. Miller (30); S. R.; Mishra (35); A. Mislivec (30); R. Mohanta (17); A. Moren (29); A. Morozova; (26); L. Mualem (4); M. Muether (46); S. Mufson (20); K. Mulder (44); R.; Murphy (20); J. Musser (20); D. Naples (33); N. Nayak (25); J. K. Nelson; (47); R. Nichol (44); G. Nikseresht (19); E. Niner (12); A. Norman (12); A.; Norrick (12); T. Nosek (5); A. Olshevskiy (26); T. Olson (43); J. Paley (12),; R. B. Patterson (4); G. Pawloski (30); O. Petrova (26); R. Petti (35); R. K.; Plunkett (12); A. Rafique (1); F. Psihas (20; 42); A. Radovic (47); V. Raj; (4); B. Ramson (12); B. Rebel (12; 48); P. Rojas (8); V. Ryabov (27); O.; Samoylov (26); M. C. Sanchez (24); S. S\'anchez Falero (24); I. S. Seong; (25); P. Shanahan (12); A. Sheshukov (26); P. Singh (11); V. Singh (3); E.; Smith (20); J. Smolik (9); P. Snopok (19); N. Solomey (46); A. Sousa (6); K.; Soustruznik (5); M. Strait (30); L. Suter (12); A. Sutton (45); C. Sweeney; (44); R. L. Talaga (1); B. Tapia Oregui (42); P. Tas (5); R. B. Thayyullathil; (7); J. Thomas (44; 48); E. Tiras (24); D. 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arXiv:2006.08727·hep-ex·February 18, 2023

Adjusting Neutrino Interaction Models and Evaluating Uncertainties using NOvA Near Detector Data

NOvA Collaboration: M. A. Acero (2), P. Adamson (12), G. Agam (19), L., Aliaga (12), T. Alion (39), V. Allakhverdian (26), N. Anfimov (26), A., Antoshkin (26), L. Asquith (39), A. Aurisano (6), A. Back (24), C. Backhouse, (44), M. Baird (20, 39, 45), N. Balashov (26)

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TL;DR

This paper evaluates neutrino interaction models using NOvA near detector data, identifies discrepancies, and proposes adjustments to reduce systematic uncertainties in neutrino oscillation measurements.

Contribution

It introduces model adjustments based on NOvA data and develops a new method to quantify uncertainties in multi-nucleon interactions.

Findings

01

Models show discrepancies with NOvA data.

02

Adjusted models improve data agreement.

03

New uncertainty quantification method for multi-nucleon interactions.

Abstract

The two-detector design of the NOvA neutrino oscillation experiment, in which two functionally identical detectors are exposed to an intense neutrino beam, aids in canceling leading order effects of cross-section uncertainties. However, limited knowledge of neutrino interaction cross sections still gives rise to some of the largest systematic uncertainties in current oscillation measurements. We show contemporary models of neutrino interactions to be discrepant with data from NOvA, consistent with discrepancies seen in other experiments. Adjustments to neutrino interaction models in GENIE that improve agreement with our data are presented. We also describe systematic uncertainties on these models, including uncertainties on multi-nucleon interactions from a newly developed procedure using NOvA near detector data.

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novaexperiment/NOvARwgt-public
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