A. Kundu et S. Mallik, BARYOGENESIS AND DAMPING IN NONMINIMAL ELECTROWEAK MODELS, Zeitschrift fur Physik. C, Particles and fields, 73(2), 1997, pp. 339-346
We calculate the baryon asymmetry of the Universe in the standard mode
l of the electroweak theory with CP violation appropriate for simple e
xtensions of the Higgs sector. The propagation of quarks of masses up
to about 5 GeV are considered, taking into account the effect of dampi
ng rate. We find that the contribution of the b quark can still accoun
t for the observed baryon asymmetry to within the theoretical uncertai
nties of such models.