Cosmological baryon production versus intermediate mass scales?

Details Cosmological baryon production versus intermediate mass scales? Cosmological baryon production versus intermediate mass scales?

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phlb..112..336m&link_type=abstract

Physics Letters B, Volume 112, Issue 4-5, p. 336-340.

Physics

13

Scientific paper

We analyze the conditions for a late cosmological matter-antimatter asymmetry production at some intermediate energy scale ~106 GeV. We envisage a new class of models where the compatibility between enough βB production and decoupling of subsequent B violating interactions at T ~ 106GeV is automatically achieved through the assumption of weak coupling between B nonconserving particles and ordinary matter. Possible consequences for nucleon stability are analyzed. The mechanism could be interesting for dynamical schemes (technicolor, composite models) where B production seems very difficult to be obtained before T ~ ΛH. Furthermore a late origin of matter-antimatter asymmetry could be essential in the resolution of some cosmological puzzles, such as the excess of monopole density.
On leave from Physics Department, College of General Education, Tohoku University, Sendai 980, Japan.

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