We propose a Dirac neutrino portal dark matter scenario by minimally extending the particle
content of the Standard Model (SM) with three right-handed neutrinos (ν R), a Dirac fermion …

We propose a self-interacting inelastic dark matter (DM) scenario as a possible origin of the
recently reported excess of electron recoil events by the XENON1T experiment. Two …

A bstract We study a generic leptophilic U (1) X extension of the standard model with a light
gauge boson. The U (1) X charge assignments for the leptons are guided by lepton …

The existence of prolonged radiation domination prior to the Big Bang Nucleosynthesis
(BBN), starting just after the inflationary epoch, is not yet established unanimously. If instead …

The origin of neutrino mass is a mystery, so is its nature, namely, whether neutrinos are
Dirac or Majorana particles. On top of that, hints of large deviations of the muon and the …

We propose a scenario where dark matter (DM) can be generated nonthermally due to the
presence of a light Dirac neutrino portal between the standard model (SM) and dark sector …

A bstract We investigate an extension of the Standard Model (SM) with two candidates for
dark matter (DM). One of them is a real scalar field and the other is an Abelian gauge field …

A bstract We propose a mechanism for cogenesis of baryon and dark matter (DM) in the
universe via the Affleck-Dine (AD) route. An AD field which breaks the lepton number …

A bstract We investigate ways of identifying two kinds of dark matter (DM) component
particles at high-energy colliders. The strategy is to notice and distinguish double-peaks …

We point out a correlation between the effective number of relativistic degrees of species N
eff, the cosmologically measured m ν, sterile eff, and the terrestrially measured neutrino …