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We introduce a singlet scalar $\phi$, with mass $m_\phi < m_\chi$, which not

The asymmetry in $\chi$ remains as a dark matter relic that we observe today. Required baryon asymmetry of the Universe via the electroweak sphalerons, while Lepton asymmetry, while that of triplet fermions to $\chi$ and $\Delta$ The early Universe, the CP-violating out-of-equilibrium decay of heavy tripletįermions to the Standard Model lepton ($L$) and Higgs ($H$) generate a net Lightest $Z_2$ odd particle $\chi$ behaves as a candidate of dark matter. A $Z_2$ symmetry is imposed under which $\chi$Īnd $\Delta$ are odd, while all other particles are even. Zero scalar triplet ($\Delta$) in addition to three hypercharge zero tripletįermions($\Sigma_i~,i=1,2,3$). Standard model with a vector-like singlet lepton ($\chi$) and a hypercharge The recently reported W-mass anomaly by CDF-II collaboration. Neutrino mass, asymmetric dark matter, baryon asymmetry of the Universe, and Download a PDF of the paper titled Cogenesis of matter and dark matter from triplet fermion seesaw, by Satyabrata Mahapatra and 3 other authors Download PDF Abstract: We propose a simple model in the type-III seesaw framework to explain the