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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

New limits on neutrino magnetic moment through nonvanishing 13-mixing

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Autor(es):
Guzzo, M. M. [1] ; de Holanda, P. C. [1] ; Peres, O. L. G. [1, 2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
[2] Abdus Salaam Int Ctr Theoret Phys, Abdus Salam Int Ctr Theoret Phys, I-34010 Trieste - Italy
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 97, n. 9 MAY 18 2018.
Citações Web of Science: 2
Resumo

The relatively large value of the neutrino mixing angle theta(13) set by recent measurements allows us to use solar neutrinos to set a limit on the neutrino magnetic moment involving the second and third flavor families, mu(23). The existence of a random magnetic field in the solar convective zone can produce a significant antineutrino flux when a nonvanishing neutrino magnetic moment is assumed. Even if we consider a vanishing neutrino magnetic moment involving the first family, electron antineutrinos are indirectly produced through the mixing between the first and third families and mu(23 )not equal 0. Using KamLAND limits on the solar flux of electron antineutrino, we set the limit mu(23) < 0.95 x 10(-1)(1)mu(B )as a reasonable assumption on the behavior of solar magnetic fields. This is the first time that a limit on mu(23) has been established in the literature directly from neutrino interactions with magnetic fields, and, interestingly enough, is comparable with the limits on the neutrino magnetic moment involving the first family and with the ones coming from modifications to the electroweak cross section. (AU)

Processo FAPESP: 12/16389-1 - Fenomenologia de neutrinos
Beneficiário:Orlando Luis Goulart Peres
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 14/19164-6 - Desafios para o século XXI em física e astrofísica de neutrinos
Beneficiário:Orlando Luis Goulart Peres
Linha de fomento: Auxílio à Pesquisa - Temático