Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM

Detalles Bibliográficos
Autores: Kitagawa, H., Super-Kamiokande Collaboration, Fernández, P., Ospina Escobar, Nataly, Zaldívar, B., Labarga Echeverría, Luis Alfonso
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/718067
Acceso en línea:http://hdl.handle.net/10486/718067
https://dx.doi.org/10.1103/PhysRevD.110.082008
Access Level:acceso abierto
Palabra clave:neutrino oscillations
atmospherics
physics
Física
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spelling Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detectorKitagawa, H.Super-Kamiokande CollaborationFernández, P.Ospina Escobar, NatalyZaldívar, B.Labarga Echeverría, Luis Alfonsoneutrino oscillationsatmosphericsphysicsFísicaArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMWe present the results of the charge ratio (R) and polarization (P0μ) measurements using decay electron events collected between September 2008 and June 2022 with the Super-Kamiokande detector. Because of its underground location and long operation, we are able to perform high-precision measurements by accumulating cosmic-ray muons. We measured the muon charge ratio to be R=1.32±0.02(stat+syst) at EμcosθZenith=0.7-0.2+0.3 TeV, where Eμ is the muon energy and θZenith is the zenith angle of incoming cosmic-ray muons. This result is consistent with the Honda flux model while indicating a tension with the πK model of 1.9σ. We also measured the muon polarization at the production location to be P0μ=0.52±0.02 (stat+syst) at the muon momentum of 0.9-0.1+0.6 TeV/c at the surface of the mountain; this also suggests a tension with the Honda flux model of 1.5σ. This is the most precise measurement ever to experimentally determine the cosmic-ray muon polarization near 1 TeV/c. These measurement results are useful to improve atmospheric neutrino simulationsWe would like to thank P. Lipari from INFN Roma for answering our questions about muon polarization. We would also like to thank H. Kurashige from Kobe University for suggestions on technical issues when developing the simulation of muon decays with spin. We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. The Super-Kamiokande experiment has been built and operated from funding by the Japanese Ministry of Education, Culture, Sports, Science and Technology; the U.S. Department of Energy; and the U.S. National Science Foundation. Some of us have been supported by funds from the National Research Foundation of Korea (NRF-2009-0083526 and NRF 2022R1A5A1030700) funded by the Ministry of Science, Information and Communication Technology (ICT); the Institute for Basic Science (IBS-R016-Y2); and the Ministry of Education (2018R1D1A1B07049158, 2021R1I1A1A01042256, 2021R1I1A1A01059559); the Japan Society for the Promotion of Science; the National Natural Science Foundation of China under Grants No. 11620101004; the Spanish Ministry of Science, Universities and Innovation (Grant PID2021-124050NB-C31); the Natural Sciences and Engineering Research Council (NSERC) of Canada; the SciNet and Westgrid consortia of Compute Canada; the National Science Centre (UMO-2018/30/E/ST2/00441 and UMO-2022/46/E/ST2/00336) and the Ministry of Education and Science (2023/WK/04), Poland; the Science and Technology Facilities Council (STFC) and Grid for Particle Physics (GridPP), UK; the European Union\u2019s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement No. 754496; H2020-MSCA-RISE-2018 JENNIFER2 Grant Agreement No. 822070, H2020-MSCA-RISE-2019 SK2HK Grant Agreement No. 872549; and European Union\u2019s Next Generation EU/PRTR Grant No. CA3/RSUE2021-00559.American Physical SocietyDepartamento de Física TeóricaFacultad de Ciencias20242024-10-15research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/718067https://dx.doi.org/10.1103/PhysRevD.110.082008reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7180672026-06-23T12:46:27Z
dc.title.none.fl_str_mv Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
title Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
spellingShingle Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
Kitagawa, H.
neutrino oscillations
atmospherics
physics
Física
title_short Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
title_full Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
title_fullStr Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
title_full_unstemmed Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
title_sort Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
dc.creator.none.fl_str_mv Kitagawa, H.
Super-Kamiokande Collaboration
Fernández, P.
Ospina Escobar, Nataly
Zaldívar, B.
Labarga Echeverría, Luis Alfonso
author Kitagawa, H.
author_facet Kitagawa, H.
Super-Kamiokande Collaboration
Fernández, P.
Ospina Escobar, Nataly
Zaldívar, B.
Labarga Echeverría, Luis Alfonso
author_role author
author2 Super-Kamiokande Collaboration
Fernández, P.
Ospina Escobar, Nataly
Zaldívar, B.
Labarga Echeverría, Luis Alfonso
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Facultad de Ciencias
dc.subject.none.fl_str_mv neutrino oscillations
atmospherics
physics
Física
topic neutrino oscillations
atmospherics
physics
Física
description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-10-15
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/718067
https://dx.doi.org/10.1103/PhysRevD.110.082008
url http://hdl.handle.net/10486/718067
https://dx.doi.org/10.1103/PhysRevD.110.082008
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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