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Title: Tuning the GENIE pion production model with MINERvA data

Abstract

Faced with unresolved tensions between neutrino interaction measurements at few-GeV neutrino energies, current experiments are forced to accept large systematic uncertainties to cover discrepancies between their data and model predictions. The widely used pion production model in GENIE is compared to four MINER$ν$A charged current pion production measurements using NUISANCE. Tunings, i.e., adjustments of model parameters, to help match GENIE to MINER$ν$A and older bubble chamber data are presented. We find that scattering off nuclear targets as measured in MINER$ν$A is not in good agreement with expectations based upon scattering off nucleon (hydrogen or deuterium) targets in existing bubble chamber data. An additional ad hoc correction for the low-$Q^2$ region, where collective nuclear effects are expected to be large, is presented. While these tunings and corrections improve the agreement of GENIE with the data, the modeling is imperfect. The development of these tunings within the NUISANCE framework allows for straightforward extensions to other neutrino event generators and models, and allows omitting and including new datasets as they become available.

Authors:
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Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
MINERvA Collaboration
OSTI Identifier:
1542968
Report Number(s):
arXiv:1903.01558; FERMILAB-PUB-19-093-ND
Journal ID: ISSN 2470-0010; PRVDAQ; oai:inspirehep.net:1723695
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 100; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Stowell, P., Pickering, L., Wilkinson, C., Wret, C., Akbar, F., Andrade, D. A., Ascencio, M. V., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Budd, H., Caceres, G., Cai, T., Carneiro, M. F., Chaves, J., da Motta, H., Dytman, S. A., Díaz, G. A., Felix, J., Fields, L., Filkins, A., Fine, R., Fiza, N., Galindo, R., Gallagher, H., Ghosh, A., Gran, R., Harris, D. A., Henry, S., Jena, S., Jena, D., Kleykamp, J., Kordosky, M., Last, D., Le, T., Lu, X. -G., Maher, E., Manly, S., Mann, W. A., Marshall, C. M., McFarland, K. S., Messerly, B., Miller, J., Morfín, J. G., Mousseau, J., Naples, D., Nelson, J. K., Nguyen, C., Norrick, A., Nuruzzaman,, Paolone, V., Perdue, G. N., Ramírez, M. A., Ransome, R. D., Ray, H., Rimal, D., Rodrigues, P. A., Ruterbories, D., Schellman, H., Solano Salinas, C. J., Su, H., Sultana, M., Syrotenko, V. S., Valencia, E., Wolcott, J., Wospakrik, M., Yaeggy, B., Zazueta, L., and Zhang, D. Tuning the GENIE pion production model with MINERvA data. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.072005.
Stowell, P., Pickering, L., Wilkinson, C., Wret, C., Akbar, F., Andrade, D. A., Ascencio, M. V., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Budd, H., Caceres, G., Cai, T., Carneiro, M. F., Chaves, J., da Motta, H., Dytman, S. A., Díaz, G. A., Felix, J., Fields, L., Filkins, A., Fine, R., Fiza, N., Galindo, R., Gallagher, H., Ghosh, A., Gran, R., Harris, D. A., Henry, S., Jena, S., Jena, D., Kleykamp, J., Kordosky, M., Last, D., Le, T., Lu, X. -G., Maher, E., Manly, S., Mann, W. A., Marshall, C. M., McFarland, K. S., Messerly, B., Miller, J., Morfín, J. G., Mousseau, J., Naples, D., Nelson, J. K., Nguyen, C., Norrick, A., Nuruzzaman,, Paolone, V., Perdue, G. N., Ramírez, M. A., Ransome, R. D., Ray, H., Rimal, D., Rodrigues, P. A., Ruterbories, D., Schellman, H., Solano Salinas, C. J., Su, H., Sultana, M., Syrotenko, V. S., Valencia, E., Wolcott, J., Wospakrik, M., Yaeggy, B., Zazueta, L., & Zhang, D. Tuning the GENIE pion production model with MINERvA data. United States. doi:10.1103/PhysRevD.100.072005.
Stowell, P., Pickering, L., Wilkinson, C., Wret, C., Akbar, F., Andrade, D. A., Ascencio, M. V., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Budd, H., Caceres, G., Cai, T., Carneiro, M. F., Chaves, J., da Motta, H., Dytman, S. A., Díaz, G. A., Felix, J., Fields, L., Filkins, A., Fine, R., Fiza, N., Galindo, R., Gallagher, H., Ghosh, A., Gran, R., Harris, D. A., Henry, S., Jena, S., Jena, D., Kleykamp, J., Kordosky, M., Last, D., Le, T., Lu, X. -G., Maher, E., Manly, S., Mann, W. A., Marshall, C. M., McFarland, K. S., Messerly, B., Miller, J., Morfín, J. G., Mousseau, J., Naples, D., Nelson, J. K., Nguyen, C., Norrick, A., Nuruzzaman,, Paolone, V., Perdue, G. N., Ramírez, M. A., Ransome, R. D., Ray, H., Rimal, D., Rodrigues, P. A., Ruterbories, D., Schellman, H., Solano Salinas, C. J., Su, H., Sultana, M., Syrotenko, V. S., Valencia, E., Wolcott, J., Wospakrik, M., Yaeggy, B., Zazueta, L., and Zhang, D. Mon . "Tuning the GENIE pion production model with MINERvA data". United States. doi:10.1103/PhysRevD.100.072005. https://www.osti.gov/servlets/purl/1542968.
@article{osti_1542968,
title = {Tuning the GENIE pion production model with MINERvA data},
author = {Stowell, P. and Pickering, L. and Wilkinson, C. and Wret, C. and Akbar, F. and Andrade, D. A. and Ascencio, M. V. and Bellantoni, L. and Bercellie, A. and Betancourt, M. and Bodek, A. and Bravar, A. and Budd, H. and Caceres, G. and Cai, T. and Carneiro, M. F. and Chaves, J. and da Motta, H. and Dytman, S. A. and Díaz, G. A. and Felix, J. and Fields, L. and Filkins, A. and Fine, R. and Fiza, N. and Galindo, R. and Gallagher, H. and Ghosh, A. and Gran, R. and Harris, D. A. and Henry, S. and Jena, S. and Jena, D. and Kleykamp, J. and Kordosky, M. and Last, D. and Le, T. and Lu, X. -G. and Maher, E. and Manly, S. and Mann, W. A. and Marshall, C. M. and McFarland, K. S. and Messerly, B. and Miller, J. and Morfín, J. G. and Mousseau, J. and Naples, D. and Nelson, J. K. and Nguyen, C. and Norrick, A. and Nuruzzaman, and Paolone, V. and Perdue, G. N. and Ramírez, M. A. and Ransome, R. D. and Ray, H. and Rimal, D. and Rodrigues, P. A. and Ruterbories, D. and Schellman, H. and Solano Salinas, C. J. and Su, H. and Sultana, M. and Syrotenko, V. S. and Valencia, E. and Wolcott, J. and Wospakrik, M. and Yaeggy, B. and Zazueta, L. and Zhang, D.},
abstractNote = {Faced with unresolved tensions between neutrino interaction measurements at few-GeV neutrino energies, current experiments are forced to accept large systematic uncertainties to cover discrepancies between their data and model predictions. The widely used pion production model in GENIE is compared to four MINER$ν$A charged current pion production measurements using NUISANCE. Tunings, i.e., adjustments of model parameters, to help match GENIE to MINER$ν$A and older bubble chamber data are presented. We find that scattering off nuclear targets as measured in MINER$ν$A is not in good agreement with expectations based upon scattering off nucleon (hydrogen or deuterium) targets in existing bubble chamber data. An additional ad hoc correction for the low-$Q^2$ region, where collective nuclear effects are expected to be large, is presented. While these tunings and corrections improve the agreement of GENIE with the data, the modeling is imperfect. The development of these tunings within the NUISANCE framework allows for straightforward extensions to other neutrino event generators and models, and allows omitting and including new datasets as they become available.},
doi = {10.1103/PhysRevD.100.072005},
journal = {Physical Review D},
number = 7,
volume = 100,
place = {United States},
year = {2019},
month = {10}
}

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Figures / Tables:

TABLE I TABLE I: Summary of the measurements used in this analysis. Wrec is the true reconstructed hadronic mass assuming the struck nucleon is at rest. None of the measurements veto on activity other than the $μ$ and $π$ in their signal definition, and all selections require 1.5 < Eν < 20more » GeV.« less

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