| Texto completo | |
| Autor(es): |
Guzzo, M. M.
;
de Holanda, P. C.
;
Peres, O. L. G.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 97, n. 9, p. 7-pg., 2018-05-18. |
| 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: | 14/19164-6 - Desafios para o século XXI em física e astrofísica de neutrinos |
| Beneficiário: | Orlando Luis Goulart Peres |
| Modalidade de apoio: | Auxílio à Pesquisa - Projetos Especiais |
| Processo FAPESP: | 12/16389-1 - Fenomenologia de neutrinos |
| Beneficiário: | Orlando Luis Goulart Peres |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |