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Title: Measurement of Neutral-Current K + Production by Neutrinos using MINERvA

Abstract

Neutral-current production of K + by atmospheric neutrinos is a background in searches for the proton decay p → K +ν¯. Reactions such as νp → νK +Λ are indistinguishable from proton decays when the decay products of the Λ are below detection threshold. Events with K + are identified in MINERvA by reconstructing the timing signature of a K + decay at rest. A sample of 201 neutrino-induced neutral-current K + events is used to measure differential cross sections with respect to the K + kinetic energy, and the non-K + hadronic visible energy. An excess of events at low hadronic visible energy is observed relative to the prediction of the neut event generator. Good agreement is observed with the cross section prediction of the genie generator. In conclusion, a search for photons from π 0 decay, which would veto a neutral-current K + event in a proton decay search, is performed, and a 2σ deficit of detached photons is observed relative to the genie prediction.

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
MINERvA Collaboration
OSTI Identifier:
1373195
Alternate Identifier(s):
OSTI ID: 1368625
Grant/Contract Number:
AC02-76SF00515; AC02-07CH11359; PHY-0619727
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 1; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Marshall, C. M., Aliaga, L., Altinok, O., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Cai, T., Carneiro, M. F., da Motta, H., Dytman, S. A., Díaz, G. A., Dunkman, M., Eberly, B., Endress, E., Felix, J., Fields, L., Fine, R., Gago, A. M., Galindo, R., Gallagher, H., Ghosh, A., Golan, T., Gran, R., Harris, D. A., Higuera, A., Hurtado, K., Kleykamp, J., Kordosky, M., Le, T., Maher, E., Manly, S., Mann, W. A., Caicedo, D. A. Martinez, McFarland, K. S., McGivern, C. L., McGowan, A. M., Messerly, B., Miller, J., Mislivec, A., Morfín, J. G., Mousseau, J., Naples, D., Nelson, J. K., Norrick, A., Nuruzzaman,, Paolone, V., Patrick, C. E., Perdue, G. N., Ramírez, M. A., Ransome, R. D., Ray, H., Ren, L., Rimal, D., Rodrigues, P. A., Ruterbories, D., Schmitz, D. W., Solano Salinas, C. J., Sultana, M., Sánchez Falero, S., Valencia, E., Walton, T., Wolcott, J., Wospakrik, M., Yaeggy, B., and Zhang, D.. Measurement of Neutral-Current K+ Production by Neutrinos using MINERvA. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.011802.
Marshall, C. M., Aliaga, L., Altinok, O., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Cai, T., Carneiro, M. F., da Motta, H., Dytman, S. A., Díaz, G. A., Dunkman, M., Eberly, B., Endress, E., Felix, J., Fields, L., Fine, R., Gago, A. M., Galindo, R., Gallagher, H., Ghosh, A., Golan, T., Gran, R., Harris, D. A., Higuera, A., Hurtado, K., Kleykamp, J., Kordosky, M., Le, T., Maher, E., Manly, S., Mann, W. A., Caicedo, D. A. Martinez, McFarland, K. S., McGivern, C. L., McGowan, A. M., Messerly, B., Miller, J., Mislivec, A., Morfín, J. G., Mousseau, J., Naples, D., Nelson, J. K., Norrick, A., Nuruzzaman,, Paolone, V., Patrick, C. E., Perdue, G. N., Ramírez, M. A., Ransome, R. D., Ray, H., Ren, L., Rimal, D., Rodrigues, P. A., Ruterbories, D., Schmitz, D. W., Solano Salinas, C. J., Sultana, M., Sánchez Falero, S., Valencia, E., Walton, T., Wolcott, J., Wospakrik, M., Yaeggy, B., & Zhang, D.. Measurement of Neutral-Current K+ Production by Neutrinos using MINERvA. United States. doi:10.1103/PhysRevLett.119.011802.
Marshall, C. M., Aliaga, L., Altinok, O., Bellantoni, L., Bercellie, A., Betancourt, M., Bodek, A., Bravar, A., Cai, T., Carneiro, M. F., da Motta, H., Dytman, S. A., Díaz, G. A., Dunkman, M., Eberly, B., Endress, E., Felix, J., Fields, L., Fine, R., Gago, A. M., Galindo, R., Gallagher, H., Ghosh, A., Golan, T., Gran, R., Harris, D. A., Higuera, A., Hurtado, K., Kleykamp, J., Kordosky, M., Le, T., Maher, E., Manly, S., Mann, W. A., Caicedo, D. A. Martinez, McFarland, K. S., McGivern, C. L., McGowan, A. M., Messerly, B., Miller, J., Mislivec, A., Morfín, J. G., Mousseau, J., Naples, D., Nelson, J. K., Norrick, A., Nuruzzaman,, Paolone, V., Patrick, C. E., Perdue, G. N., Ramírez, M. A., Ransome, R. D., Ray, H., Ren, L., Rimal, D., Rodrigues, P. A., Ruterbories, D., Schmitz, D. W., Solano Salinas, C. J., Sultana, M., Sánchez Falero, S., Valencia, E., Walton, T., Wolcott, J., Wospakrik, M., Yaeggy, B., and Zhang, D.. Fri . "Measurement of Neutral-Current K+ Production by Neutrinos using MINERvA". United States. doi:10.1103/PhysRevLett.119.011802.
@article{osti_1373195,
title = {Measurement of Neutral-Current K+ Production by Neutrinos using MINERvA},
author = {Marshall, C. M. and Aliaga, L. and Altinok, O. and Bellantoni, L. and Bercellie, A. and Betancourt, M. and Bodek, A. and Bravar, A. and Cai, T. and Carneiro, M. F. and da Motta, H. and Dytman, S. A. and Díaz, G. A. and Dunkman, M. and Eberly, B. and Endress, E. and Felix, J. and Fields, L. and Fine, R. and Gago, A. M. and Galindo, R. and Gallagher, H. and Ghosh, A. and Golan, T. and Gran, R. and Harris, D. A. and Higuera, A. and Hurtado, K. and Kleykamp, J. and Kordosky, M. and Le, T. and Maher, E. and Manly, S. and Mann, W. A. and Caicedo, D. A. Martinez and McFarland, K. S. and McGivern, C. L. and McGowan, A. M. and Messerly, B. and Miller, J. and Mislivec, A. and Morfín, J. G. and Mousseau, J. and Naples, D. and Nelson, J. K. and Norrick, A. and Nuruzzaman, and Paolone, V. and Patrick, C. E. and Perdue, G. N. and Ramírez, M. A. and Ransome, R. D. and Ray, H. and Ren, L. and Rimal, D. and Rodrigues, P. A. and Ruterbories, D. and Schmitz, D. W. and Solano Salinas, C. J. and Sultana, M. and Sánchez Falero, S. and Valencia, E. and Walton, T. and Wolcott, J. and Wospakrik, M. and Yaeggy, B. and Zhang, D.},
abstractNote = {Neutral-current production of K+ by atmospheric neutrinos is a background in searches for the proton decay p → K+ν¯. Reactions such as νp → νK+Λ are indistinguishable from proton decays when the decay products of the Λ are below detection threshold. Events with K+ are identified in MINERvA by reconstructing the timing signature of a K+ decay at rest. A sample of 201 neutrino-induced neutral-current K+ events is used to measure differential cross sections with respect to the K+ kinetic energy, and the non-K+ hadronic visible energy. An excess of events at low hadronic visible energy is observed relative to the prediction of the neut event generator. Good agreement is observed with the cross section prediction of the genie generator. In conclusion, a search for photons from π0 decay, which would veto a neutral-current K+ event in a proton decay search, is performed, and a 2σ deficit of detached photons is observed relative to the genie prediction.},
doi = {10.1103/PhysRevLett.119.011802},
journal = {Physical Review Letters},
number = 1,
volume = 119,
place = {United States},
year = {Fri Jul 07 00:00:00 EDT 2017},
month = {Fri Jul 07 00:00:00 EDT 2017}
}

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