Neutrino masses and lepton flavor violation in thick brane scenarios
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Neutrino masses and lepton flavor violation in thick brane scenarios

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Neutrino masses and lepton flavor violation in thick brane scenarios

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dc.contributor.author Barenboim Szuchman, Gabriela Alejandra
dc.contributor.author Branco, Gustavo Castelo
dc.contributor.author De Gouvêa, André
dc.contributor.author Rebelo, M. N.
dc.date.accessioned 2015-04-28T08:50:30Z
dc.date.available 2015-04-28T08:50:30Z
dc.date.issued 2001
dc.identifier.uri http://hdl.handle.net/10550/43465
dc.description.abstract We address the issue of lepton flavor violation and neutrino masses in the 'fat-brane' paradigm, where flavor changing processes are suppressed by localizing different fermion field wave functions at different positions (in the extra dimensions) in a thick brane. We study the consequences of suppressing lepton number violating charged lepton decays within this scenario for lepton masses and mixing angles. In particular, we find that charged lepton mass matrices are constrained to be quasidiagonal. We further consider whether the same paradigm can be used to naturally explain small Dirac neutrino masses by considering the existence of three right-handed neutrinos in the brane, and discuss the requirements to obtain phenomenologically viable neutrino masses and mixing angles. Finally, we examine models where neutrinos obtain a small Majorana mass by breaking lepton number in a far away brane and show that, if the fat-brane paradigm is the solution to the absence of lepton number violating charged lepton decays, such models predict, in the absence of flavor symmetries, that charged lepton flavor violation will be observed in the next round of rare muon or tau decay experiments.
dc.language.iso eng
dc.relation.ispartof Physics Review D, 2001, vol. 64, num. 7, p. 073005
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Barenboim Szuchman, Gabriela Alejandra Branco, Gustavo Castelo De Gouvêa, André Rebelo, M. N. 2001 Neutrino masses and lepton flavor violation in thick brane scenarios Physics Review D 64 7 073005
dc.subject Física
dc.title Neutrino masses and lepton flavor violation in thick brane scenarios
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-04-28T08:50:30Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.64.073005
dc.identifier.idgrec 029477

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