B-L violating proton decay and late cosmological baryon production

Details B-L violating proton decay and late cosmological baryon production B-L violating proton decay and late cosmological baryon production

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phlb..116...11m&link_type=abstract

Physics Letters B, Volume 116, Issue 1, p. 11-15.

Physics

14

Scientific paper

We analyze the consequences on matter stability of baryon violating interactions generating a cosmological baryon asymmetry at temperatures much below the grand unified mass. We show that in a class of models where weak couplings of non-ordinary fermions to ordinary matter are used to achieve a late baryon production, nucleon decays are predicted to violate B-L, but to respect the ΔB=-ΔL selection rule. The analysis is conducted in an effective SU(3) × SU(2) × U(1) theory, with an illustration in SU(5). The mechanism could be relevant for cosmological baryon production in supersymmetric grand unified theories.
On leave from Physics Department, College of General Education, Tohoku University, Sendai, 980 Japan.

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