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Type: Artigo de periódico
Title: Neutrino mass bound in the standard scenario for supernova electronic antineutrino emission
Author: Pagliaroli, G
Rossi-Torres, F
Vissani, F
Abstract: Based on recent improvements of the supernova electron antineutrino emission model, we update the limit on neutrino mass from the SN1987A data collected by Kamiokande-II, IMB and Baksan. We derive the limit of 5.8 eV at 95% CL, that we show to be remarkably insensitive to the astrophysical uncertainties. Also we evaluate the ultimate mass sensitivity of this method for a detector like Super-Kamiokande. We find that the bound lies in the sub-eV region, 0.8 eV at 95% CL being a typical outcome, competitive with the values that are presently probed in laboratory. However, this bound is subject to strong statistical fluctuations, correlated to the characteristics of the first few events detected. We briefly comment on the prospects offered by future detectors. (C) 2010 Elsevier B.V. All rights reserved.
Subject: Neutrino mass
Core collapse supernova
Country: Holanda
Editor: Elsevier Science Bv
Citation: Astroparticle Physics. Elsevier Science Bv, v. 33, n. 41795, n. 287, n. 291, 2010.
Rights: fechado
Identifier DOI: 10.1016/j.astropartphys.2010.02.007
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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