We explore the possibility of probing freeze-in dark matter (DM) produced via the right-
handed neutrino (RHN) portal using the RHN search experiments. We focus on a simplified …

Confinement in SU (N DC) Yang-Mills theories is known to proceed through first-order
phase transition. The wall velocity is bounded by vw≲ 10-6 due to the needed time for the …

A dynamical mechanism, based on a confining non-Abelian dark symmetry, which
generates Majorana masses for hyperchargeless fermions, is proposed. We apply it to the …

Provided the dark sector consisted of a dark scalar ϕ and a dark fermion χ under an exact Z
2 symmetry, the sterile neutrino N can act as the messenger between the dark sector and …

Abstract In an earlier work [1], we showed that in very simple neutrino portal-like extensions
of the Standard Model it is possible to achieve a one-to-one correspondence between dark …

In this paper, we study the feeble sterile neutrino portal dark matter under the Z 3 symmetry.
The dark sector consists of one fermion singlet χ and one scalar singlet χ, which transform as …

In this paper, we propose the sterile neutrino portal dark matter in\(\nu\) THDM. This model
can naturally generate tiny neutrino mass with the neutrinophilic scalar doublet\(\Phi _ {\nu}\) …

The seesaw mechanism with three heavy Majorana right-handed neutrinos provides an
elegant explanation for neutrino masses and, combined with leptogenesis, can generate the …

In big bang nucleosynthesis (BBN), the light matter abundance is dictated by the neutron-to-
proton (n/p) ratio which is controlled by the standard weak processes in the early universe …

Dark matter indirect detection searches have historically focused on additional contributions
to the expected astrophysical fluxes due to annihilations and/or decays of dark matter …