TY - JOUR
T1 - An "archaeological" quest for galactic supernova neutrinos
AU - Lazauskas, Rimantas
AU - Lunardini, Cecilia
AU - Volpe, Cristina
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
KW - Core-collapse supernovas
KW - Star formation
KW - Supernova neutrinos
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U2 - 10.1088/1475-7516/2009/04/029
DO - 10.1088/1475-7516/2009/04/029
M3 - Article
AN - SCOPUS:70350651958
SN - 1475-7516
VL - 2009
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 4
M1 - 029
ER -