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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Constraints on neutrino decay lifetime using long-baseline charged and neutral current data

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Gomes, R. A. [1, 2] ; Gomes, A. L. G. [1] ; Peres, O. L. G. [3, 4]
Total Authors: 3
[1] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go - Brazil
[2] Argonne Natl Lab, Argonne, IL 60439 - USA
[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
Total Affiliations: 4
Document type: Journal article
Source: Physics Letters B; v. 740, p. 345-352, JAN 5 2015.
Web of Science Citations: 23

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)

FAPESP's process: 12/16389-1 - Neutrino phenomenology
Grantee:Orlando Luis Goulart Peres
Support type: Regular Research Grants