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Probing High Scale Dirac Leptogenesis via Gravitational Waves from Domain Walls
Basabendu Barman, Debasish Borah, Arnab Dasgupta +1
We propose a novel way of probing high scale Dirac leptogenesis, a viable alternative to canonical leptogenesis scenario where the total lepton number is conserved, keeping light s…
Observable Lepton Number Violation with Predominantly Dirac Nature of Active Neutrinos
Debasish Borah, Arnab Dasgupta
We study a specific version of models extended by discrete symmetries where the new physics sector responsible for tiny neutrino masses a…
Common Origin of Neutrino Mass, Dark Matter and Dirac Leptogenesis
Debasish Borah, Arnab Dasgupta
We study the possibility of generating tiny Dirac neutrino masses at one loop level through the \textit{scotogenic} mechanism such that one of the particles going inside the loop c…
Limiting the Effective Mass and New Physics Parameters from
Ram Lal Awasthi, Arnab Dasgupta, Manimala Mitra
In the light of the recent result from KamLAND-Zen (KLZ) and GERDA Phase-II, we update the bounds on the effective mass and the new physics parameters, relevant for neutrinoless do…
Nonthermal violation in soft leptogenesis
Rathin Adhikari, Arnab Dasgupta, Chee Sheng Fong +1
Soft leptogenesis is a mechanism which generates the matter-antimatter asymmetry of the Universe via the out-of-equilibrium decays of heavy sneutrinos in which soft supersymmetry b…
Scalar Dark Matter with Type II Seesaw
Arnab Dasgupta, Debasish Borah
We study the possibility of generating tiny neutrino mass through a combination of type I and type II seesaw mechanism within the framework of an abelian extension of standard mode…