An ''archaeological'' quest for galactic supernova neutrinos
- Institut Pluridisciplinaire Hubert Curien (IPHC), IN2P3-CNRS/Universite Louis Pasteur, 23 rue du Loess, BP-28, 67037 Strasbourg (France)
- Dept. of Physics, Arizona State University, PO Box 871504, Tempe, AZ 85287-1504 (United States)
- Institut de Physique Nucleaire, Batiment 100 A, 15 rue Georges Clemenceau, F-91406 Orsay cedex (France)
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{sup 7} atoms per 10 kilotons of ore, which is close to the current geochemical experimental sensitivity. Of this, {approx} 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.
- OSTI ID:
- 22156979
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 04; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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