Testable Leptogenesis in extended Standard Model

Details Testable Leptogenesis in extended Standard Model Testable Leptogenesis in extended Standard Model

2009-11-24

arxiv.org/abs/0911.4577v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 7 figures, corrected typos, references added.

Scientific paper

We have proposed a new minimal extension of the Standard Model with a heavy Majorana fermion triplet($\Sigma$) and an extra scalar doublet($\eta$) so that the seesaw mechanism is radiative and can be accessible at upcoming accelerators. The origin of neutrino mass via the famous seesaw mechanism through the heavy Majorana fermion triplet has been discussed. We have proposed a mechanism of leptogenesis by the decay of the lightest neutral component of the fermion triplet into a Standard Model lepton doublet and an extra Higgs doublet. The important thing is that the leptogenesis scenario discussed in this letter can be of TeV scale and hence can be testable at Large Hadron Collider(LHC). We have also discussed a possible dark matter scenario in our model and the possible phenomenology of the fermion field $\Sigma$.

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