Baryogenesis at the weak phase transition

Details Baryogenesis at the weak phase transition Baryogenesis at the weak phase transition

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..198..411d&link_type=abstract

Physics Letters B, Volume 198, Issue 3, p. 411-415.

Physics

8

Scientific paper

The weak phase transition of the hot big bang can produce quarks, leptons and weak bosons which are out of thermal equilibrium. In a simple extension of the standard model it is shown that the reactions following top quark decays can generate the cosmological baryon asymmetry. The top quark mass must be close to 80 GeV and the Higgs boson must be lighter than 1 GeV. This baryogenesis mechanism can be directly tested at e+e- and hadron collider by searching for spectacular events containing six or more bottom quarks and a violation of baryon number at the decay vertex of a long lived neutral particle.

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