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Title: Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data

Abstract

The longstanding discrepancy between bubble chamber measurements of ν μ-induced single pion production channels has led to large uncertainties in pion production cross section parameters for many years. We extend the reanalysis of pion production data in deuterium bubble chambers where this discrepancy is solved to include the ν μn → μ 0 and ν μn→μ + channels, and use the resulting data to fit the parameters of the GENIE pion production model. We find a set of parameters that can describe the bubble chamber data better than the GENIE default parameters, and provide updated central values and reduced uncertainties for use in neutrino oscillation and cross section analyses which use the GENIE model. Here, we find that GENIE’s non-resonant background prediction has to be significantly reduced to fit the data, which may help to explain the recent discrepancies between simulation and data observed by the MINERνA coherent pion and NOνA oscillation analyses.

Authors:
 [1];  [2];  [1]
  1. Univ. of Rochester, Rochester, NY (United States)
  2. Univ. of Bern, Bern (Switzerland)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1305436
Alternate Identifier(s):
OSTI ID: 1437940
Grant/Contract Number:
SC0008475
Resource Type:
Journal Article: Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 76; Journal Issue: 8; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Pion Production; Final State Interaction; Bubble Chamber; Dependent Distribution; Near Detector

Citation Formats

Rodrigues, Philip, Wilkinson, Callum, and McFarland, Kevin. Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data. United States: N. p., 2016. Web. doi:10.1140/epjc/s10052-016-4314-3.
Rodrigues, Philip, Wilkinson, Callum, & McFarland, Kevin. Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data. United States. doi:10.1140/epjc/s10052-016-4314-3.
Rodrigues, Philip, Wilkinson, Callum, and McFarland, Kevin. Wed . "Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data". United States. doi:10.1140/epjc/s10052-016-4314-3.
@article{osti_1305436,
title = {Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data},
author = {Rodrigues, Philip and Wilkinson, Callum and McFarland, Kevin},
abstractNote = {The longstanding discrepancy between bubble chamber measurements of νμ-induced single pion production channels has led to large uncertainties in pion production cross section parameters for many years. We extend the reanalysis of pion production data in deuterium bubble chambers where this discrepancy is solved to include the νμn → μ–pπ0 and νμn→μ–nπ+ channels, and use the resulting data to fit the parameters of the GENIE pion production model. We find a set of parameters that can describe the bubble chamber data better than the GENIE default parameters, and provide updated central values and reduced uncertainties for use in neutrino oscillation and cross section analyses which use the GENIE model. Here, we find that GENIE’s non-resonant background prediction has to be significantly reduced to fit the data, which may help to explain the recent discrepancies between simulation and data observed by the MINERνA coherent pion and NOνA oscillation analyses.},
doi = {10.1140/epjc/s10052-016-4314-3},
journal = {European Physical Journal. C, Particles and Fields},
number = 8,
volume = 76,
place = {United States},
year = {Wed Aug 24 00:00:00 EDT 2016},
month = {Wed Aug 24 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1140/epjc/s10052-016-4314-3

Citation Metrics:
Cited by: 12works
Citation information provided by
Web of Science

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