Cosmological constraints on heavy weakly interacting fermions

Details Cosmological constraints on heavy weakly interacting fermions Cosmological constraints on heavy weakly interacting fermions

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981nuphb.177..456h&link_type=abstract

Nuclear Physics B, Volume 177, Issue 3, p. 456-460.

Physics

Nuclear Physics

10

Scientific paper

The masses and lifetimes of very heavy weakly interacting fermions which appear in many grand unified gauge models are constrained by the requirement that their decays in the hot big bang early universe should not generate excessive entropy which would dilute nB/nγ below its observed value.
Supported in part by the Fleishmann Foundation under grant no. 30175.

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