Most of the free parameters in the Standard Model (SM)—a quantum field theory which has
successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all …

Neutrinos are the only particles in the Standard Model (SM) of particle physics that have only
been observed with left handed chirality to date. If right handed (RH) neutrinos exist, they …

Leptogenesis is a class of scenarios where the baryon asymmetry of the Universe is
produced from a lepton asymmetry generated in the decays of heavy singlet neutrinos. We …

A bstract We propose a minimal extension of the standard model which includes only one
additional complex scalar field, flavon, with flavor-dependent global U (1) symmetry. It not …

A bstract In seesaw mechanism, if right handed (RH) neutrino masses are generated
dynamically by a gauged U (1) symmetry breaking, a stochastic gravitational wave …

Ultralight primordial black holes (PBHs)(≲ 10 9 g) completely evaporate via Hawking
radiation (HR) and produce all the particles in a given theory regardless of their other …

Right-handed neutrinos offer an elegant solution to two well-established phenomena
beyond the Standard Model (SM)—masses and oscillations of neutrinos, as well as the …

A bstract We consider a model with three right-handed neutrinos in which Yukawa coupling
constants and Majorana masses are obtained by requiring the modular A 4 symmetry. It has …

This chapter of the report of the “Flavor in the era of the LHC” Workshop discusses the
theoretical, phenomenological and experimental issues related to flavor phenomena in the …

A bstract In this paper, we incorporate the modular S 4 flavor symmetry into the
supersymmetric version of the minimal type-I seesaw model, in which only two right-handed …