An MFV leptoquark model shows that the CKM phase alone can in principle generate the observed baryon asymmetry without time-varying model parameters.
Resurrection of Grand Unified Theory Baryogenesis
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abstract
A `new' scenario is proposed for baryogenesis. We show that delayed decay of coloured Higgs particles in grand unified theories may generate excess baryon number of the empirically desired amount, if the mass of the heaviest neutrino is in the range $0.02 {\rm eV}<m_{\nu_3}< 0.8 {\rm eV}$, provided that neutrinos are of the Majorana type. The scenario accommodates the case of degenerate neutrino masses, in contrast to the usual leptogenesis scenario, which does not work when three neutrino masses are degenerate.
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Baryogenesis via the CKM Matrix with Minimal Flavor Violation
An MFV leptoquark model shows that the CKM phase alone can in principle generate the observed baryon asymmetry without time-varying model parameters.