Antineutrino background from stellar collapses in the past evolution of the universe

Details Antineutrino background from stellar collapses in the past evolution of the universe Antineutrino background from stellar collapses in the past evolution of the universe

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apl%26c..27...49g&link_type=abstract

Astrophysical Letters and Communications (ISSN 0888-6512), vol. 27, June 1988, p. 49-54.

Astronomy and Astrophysics

Astrophysics

1

Antineutrinos, Cosmology, Gravitational Collapse, Relic Radiation, Stellar Evolution, Radiation Detectors, Red Shift, Supernova 1987A

Scientific paper

The diffuse cosmic background or relic neutrinos, from gravitational stellar collapses in the past evolution of the universe, is estimated on the basis of a recently computed rate of collapsing stars in the Galaxy. This background is due to the large amount of neutrinos emitted during the collapse, even if the associated optical outburst is too dim to be observed, or not produced at all. It is shown that the antineutrino's background can induce a detectable signal in a large liquid scintillation detector deep underground, in the cosmic window from 3 to 40 MeV, provided the counting rate of pure background pulses in the detector is low in this energy range.

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