Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation

Detalhes bibliográficos
Autor(a) principal: Escobar, C. A.
Data de Publicação: 2017
Outros Autores: Noordmans, J. P., Potting, R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/11427
Resumo: We study CPT and Lorentz violation in the tau-lepton sector of the Standard Model in the context of the Standard-Model Extension, parametrized by a coefficient which is thus far unbounded by experiment. We show that any nonzero value of this coefficient implies that, for sufficiently large energies, Standard Model fermions become unstable against decay due to the emission of a pair of tau-antitau leptons. We calculate the induced fermion energy-loss rate and we deduce the first limit on the Lorentz- and CPT-violation coefficient.
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spelling Cosmic-ray fermion decay through tau-antitau emission with Lorentz violationArrival directionsCpt violationArrayWe study CPT and Lorentz violation in the tau-lepton sector of the Standard Model in the context of the Standard-Model Extension, parametrized by a coefficient which is thus far unbounded by experiment. We show that any nonzero value of this coefficient implies that, for sufficiently large energies, Standard Model fermions become unstable against decay due to the emission of a pair of tau-antitau leptons. We calculate the induced fermion energy-loss rate and we deduce the first limit on the Lorentz- and CPT-violation coefficient.American Physical SocietySapientiaEscobar, C. A.Noordmans, J. P.Potting, R.2018-12-07T14:53:15Z2017-072017-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11427eng2470-00102470-002910.1103/PhysRevD.97.115030info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-29T10:32:27Zoai:sapientia.ualg.pt:10400.1/11427Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-29T10:32:27Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
title Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
spellingShingle Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
Escobar, C. A.
Arrival directions
Cpt violation
Array
title_short Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
title_full Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
title_fullStr Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
title_full_unstemmed Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
title_sort Cosmic-ray fermion decay through tau-antitau emission with Lorentz violation
author Escobar, C. A.
author_facet Escobar, C. A.
Noordmans, J. P.
Potting, R.
author_role author
author2 Noordmans, J. P.
Potting, R.
author2_role author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Escobar, C. A.
Noordmans, J. P.
Potting, R.
dc.subject.por.fl_str_mv Arrival directions
Cpt violation
Array
topic Arrival directions
Cpt violation
Array
description We study CPT and Lorentz violation in the tau-lepton sector of the Standard Model in the context of the Standard-Model Extension, parametrized by a coefficient which is thus far unbounded by experiment. We show that any nonzero value of this coefficient implies that, for sufficiently large energies, Standard Model fermions become unstable against decay due to the emission of a pair of tau-antitau leptons. We calculate the induced fermion energy-loss rate and we deduce the first limit on the Lorentz- and CPT-violation coefficient.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
2017-07-01T00:00:00Z
2018-12-07T14:53:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/11427
url http://hdl.handle.net/10400.1/11427
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2470-0010
2470-0029
10.1103/PhysRevD.97.115030
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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