Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/85258
Type: Artigo
Title: Constraints on neutrino decay lifetime using long-baseline charged and neutral current data
Author: Gomes, R. A.
Gomes, A. L. G.
Peres, O. L. G.
Abstract: 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 α3. The MINOS charged and neutral current data analysis results in the best fit for |δm32 2|=2.34 × 10-3eV2, sin2θ23 = 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 τ3/m3 > 2.8 × 10-12s/eV. This is the best limit based only on accelerator produced neutrinos.
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 α3. The MINOS charged and neutral current data analysis results in the best fit for |δm32 2|=2.34 × 10-3eV2, sin2θ23 = 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 τ3/m3 &gt
2.8 × 10-12s/eV. This is the best limit based only on accelerator produced neutrinos.
Subject: Neutrinos
Decaimento de neutrinos
Oscilações de neutrinos
Country: Holanda
Editor: Elsevier
Citation: Physics Letters, Section B: Nuclear, Elementary Particle And High-energy Physics. Elsevier, v. 740, n. , p. 345 - 352, 2015.
Rights: aberto
Identifier DOI: 10.1016/j.physletb.2014.12.014
Address: https://www.sciencedirect.com/science/article/pii/S0370269314008855
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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