Procurando por decaimento de matéria escura pesada em telescópios de neutrinos
A procura de física alem do Modelo Padrão com Telescópios de neutrinos
Texto completo | |
Autor(es): |
Número total de Autores: 3
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Afiliação do(s) autor(es): | [1] Argonne Natl Lab, Argonne, IL 60439 - USA
[2] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go - Brazil
[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[4] Abdus Salaam Int Ctr Theoret Phys, Abdus Salam Int Ctr Theoret Phys, I-34010 Trieste - Italy
Número total de Afiliações: 4
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Tipo de documento: | Artigo Científico |
Fonte: | Physics Letters B; v. 740, p. 345-352, JAN 5 2015. |
Citações Web of Science: | 23 |
Resumo | |
We investigate the status of a scenario involving oscillations and decay for charged and neutral current data from the MINOS and T2K experiments. We first present an analysis of charged current neutrino and anti-neutrino data from MINOS in the framework of oscillation with decay and obtain a best fit for non-zero decay parameter alpha(3). The MINOS charged and neutral current data analysis results in the best fit for vertical bar Delta m(32)(2)vertical bar = 2.34 x10(-3) eV(2), sin(2) theta(23) = 0.60 and zero decay parameter, which corresponds to the limit for standard oscillations. Our combined MINOS and T2K analysis reports a constraint at the 90% confidence level for the neutrino decay lifetime tau(3)/m(3) > 2.8 x 10(-12) s/eV. This is the best limit based only on accelerator produced neutrinos. (C) 2014 The Authors. Published by Elsevier B.V. (AU) | |
Processo FAPESP: | 12/16389-1 - Fenomenologia de neutrinos |
Beneficiário: | Orlando Luis Goulart Peres |
Modalidade de apoio: | Auxílio à Pesquisa - Regular |