Boundaries on Neutrino Mass from Supernovae Neutronization Burst by Liquid Argon Experiments

Abstract

This work presents an upper bound on the neutrino mass using the emission of $\hat{I}{½}_e$ from the neutronization burst of a core collapsing supernova at 10~kpc of distance and a progenitor star of 15~M${}_{\odot }$. The calculations were done considering a 34 kton Liquid Argon Time Projection Chamber similar to the Far Detector proposal of the Long Baseline Neutrino Experiment (LBNE). We have performed a Monte Carlo simulation for the number of events integrated in 5~ms bins. Our results are $m_{\hat{I}}½<2.71$~eV and $0.18~\mbox{eV}<m_ν<1.70$~eV, at 95\% C.L, assuming normal hierarchy and inverted hierarchy, respectively. We have analysed different configurations for the detector performance resulting in neutrino mass bound of $\mathcal{O}(1)$~eV.

7 pages, 2 figures and 1 table