Asymmetric lepton production in a universe with non-zero baryon number

Details Asymmetric lepton production in a universe with non-zero baryon number Asymmetric lepton production in a universe with non-zero baryon number

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..82..485s&link_type=abstract

Astrophysics and Space Science, vol. 82, no. 2, Mar. 1982, p. 485-488.

Astronomy and Astrophysics

Astronomy

4

Baryons, Cosmic Rays, Leptons, Particle Production, Stellar Evolution, Black Holes (Astronomy), Electrons, Main Sequence Stars, Neutron Stars, Positrons, Supernovae

Scientific paper

Due to processes occurring during different stages of stellar evolution, a universe with a net baryon number develops an excess of neutrinos and positrons over antineutrinos of the same order as the observed relative strength of CP violation, over the course of a Hubble age. Since the neutrinos have a left-handed helicity, an initially symmetric universe would become weakly left-handed after a period of about 10 to the 10th years.

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