The current status of baryogenesis is reviewed, with an emphasis on electroweak
baryogenesis and leptogenesis. The first detailed studies were carried out for SU (5) grand …

▪ Abstract We explore in some detail the hypothesis that the generation of a primordial lepton-
antilepton asymmetry (Leptogenesis) early on in the history of the Universe is the root cause …

We discuss the footprint of evaporation of primordial black holes (PBHs) on stochastic
gravitational waves (GWs) induced by scalar perturbations. We consider the case where …

In the see-saw model, the baryon asymmetry of the Universe can be generated by the decay
of the lightest right-handed neutrino, νR. For a hierarchical spectrum of right-handed …

This paper is a review of the present status of neutrino mass physics, which grew out of an
APS sponsored study of neutrinos in 2004. After a discussion of the present knowledge of …

A bstract In the purely gravitational dark matter scenario, the dark matter particle does not
have any interaction except for gravitational one. We study the gravitational particle …

Baryogenesis by heavy-neutrino decay and sphaleron reprocessing of both baryon and
lepton number is reconsidered, paying special attention to the flavour structure of the …

We review the particle theory origin of inflation and curvaton mechanisms for generating
large scale structures and the observed temperature anisotropy in the cosmic microwave …

We construct the new Minimal Standard Model that incorporates the new discoveries of
physics beyond the Minimal Standard Model (MSM): dark energy, non-baryonic dark matter …

We reexamine the upper limits on the abundance of unstable massive relic particles
provided by the success of big-bang nucleosynthesis calculations. We use the cosmic …