We study a scotogenic extension of the minimal gauged ${L}_{\ensuremath{\mu}}\ensuremath{-}{L}_{\ensuremath{\tau}}$ model including three right-handed singlet fermions and scalar doublet all odd under an in-built ${Z}_{2}$ symmetry to explain anomalous magnetic moments muon, CDF-II $W$-mass anomaly, 95 GeV excess reported by CMS collaboration. While can successfully muon ($g\ensuremath{-}2$) anomalies, required diphoton signal strength for scalar, together with that SM Higgs, cannot be...

We propose a simple model in the type-III seesaw framework to explain neutrino mass, asymmetric dark matter (DM), and baryon asymmetry of Universe. extend Standard Model with vectorlike singlet lepton (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>χ</a:mi></a:math>) hypercharge zero scalar triplet (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi mathvariant="normal">Δ</c:mi></c:math>) addition three fermions (<f:math...

We study the possibility of generating dark matter (DM) and baryon asymmetry Universe (BAU) simultaneously in an asymmetric DM framework, which also alleviates small-scale structure issues cold DM. While thermal relic such self-interacting remains underabundant due to efficient annihilation into light mediators, a nonzero sector can lead survival required Universe. The existence mediator leads self-interactions at small scales while keeping properties similar large scales. It ensures that...

We study the possibility of generating dark matter (DM) and baryon asymmetry Universe (BAU) simultaneously in an asymmetric DM framework, which also alleviates small-scale structure issues cold DM. While thermal relic such self-interacting remains under-abundant due to efficient annihilation into light mediators, a nonzero sector can lead survival required Universe. The existence mediator leads self-interactions at small scales while keeping properties similar large scales. It ensures that...

In a canonical type-I seesaw scenario, the SM is extended with three singlet right-handed neutrinos (RHNs) $N_i, i=1,2,3$ masses $M_i, to simultaneously explain sub-eV of light and baryon asymmetry Universe. this paper, we show that relatively low-scale thermal leptogenesis accompanied by gravitational wave signatures possible when fermion ($S$) scalar ($\rho$), where $S$ $\rho$ are odd under discrete $Z_2$ symmetry. We also add vector-like doublet $\Psi$ impose $Z^\prime_2$ symmetry which...

The singlet-doublet vector-like fermion dark matter model has been extensively studied in the literature over past decade. An important parameter this is mixing angle ($\sin\theta$). All previous studies have primarily focused on annihilation and co-annihilation processes for obtaining correct relic density, assuming that singlet doublet components decouple at same epoch. In work, we demonstrate assumption holds only larger angles with a dependency mass of matter. However, it badly fails...

We propose a simple model in the type-III seesaw framework to explain neutrino mass, asymmetric dark matter, baryon asymmetry of Universe, and recently reported W-mass anomaly by CDF-II collaboration. extend standard with vector-like singlet lepton ($\chi$) hypercharge zero scalar triplet ($\Delta$) addition three fermions($\Sigma_i~,i=1,2,3$). A $Z_2$ symmetry is imposed under which $\chi$ $\Delta$ are odd, while all other particles even. As result, lightest odd particle behaves as...

We study a scotogenic extension of the minimal gauged $L_{\mu}-L_{\tau}$ model, including three right-handed singlet fermions and scalar doublet all odd under an in-built $Z_2$ symmetry to explain anomalous magnetic moments muon, CDF-II W-mass anomaly, 95 GeV excess reported by CMS collaboration. While model can successfully muon $(g-2)$ anomalies, required diphoton signal strength for scalar, together with that SM Higgs, not be obtained in model. The same can, however, explained...

In this paper, we discuss the impact of neutrino phenomenology and related cosmology on an $A_{4}\otimes Z_{8}$ symmetric $\nu$2HDM along with addition a new particle, i.e. gauge singlet(S). The additional particle is sterile which considered to be probable dark matter candidate in our work. With choice mass keV range evaluate active-DM mixing angle, decay rate relic abundance considering various cosmological constraints. Simultaneously, detailed analysis baryogenesis neutrinoless double...

In this paper, we discuss the impact of neutrino phenomenology and related cosmology on an $A_{4}\otimes Z_{8}$ symmetric $ν$2HDM along with addition a new particle, i.e. gauge singlet(S). The additional particle is sterile which considered to be probable dark matter candidate in our work. With choice mass keV range evaluate active-DM mixing angle, decay rate relic abundance considering various cosmological constraints. Simultaneously, detailed analysis baryogenesis neutrinoless double beta...