An "archaeological" quest for galactic supernova neutrinos
Abstract
We explore the possibility to observe the effects of electron neutrinos from past galactic supernovae, through a geochemical measurement of the amount of Technetium 97 produced by neutrino-induced reactions in a Molybdenum ore. The calculations we present take into account the recent advances in our knowledge of neutrino interactions, of neutrino oscillations inside a supernova, of the solar neutrino flux at Earth and of possible failed supernovae. The predicted Technetium 97 abundance is of the order of 10^7 atoms per 10 kilotons of ore, which is close to the current geochemical experimental sensitivity. Of this, 10-20% is from supernovae. Considering the comparable size of uncertainties, more precision in the modeling of neutrino fluxes as well as of neutrino cross sections is required for a meaningful measurement.
Keywords
Cite
@article{arxiv.0901.0581,
title = {An "archaeological" quest for galactic supernova neutrinos},
author = {Rimantas Lazauskas and Cecilia Lunardini and Cristina Volpe},
journal= {arXiv preprint arXiv:0901.0581},
year = {2014}
}
Comments
PDFLateX, 22 pages, 2 Tables, 6 figures