Low Scale Leptogenesis and Dark Matter Candidates in an Extended Seesaw Model

Details Low Scale Leptogenesis and Dark Matter Candidates in an Extended Seesaw Model Low Scale Leptogenesis and Dark Matter Candidates in an Extended Seesaw Model

2007-10-12

arxiv.org/abs/0710.2416v4

JCAP0805:004,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

correct typo and reference

Scientific paper

10.1088/1475-7516/2008/05/004

We consider a variant of seesaw mechanism by introducing extra singlet neutrinos and singlet scalar boson, and show how low scale leptogenesis is successfully realized in this scenario. We examine if the newly introduced neutral particles, either singlet Majorana neutrino or singlet scalar boson, can be a candidate for dark matter. We also discuss the implications of the dark matter detection through the scattering off the nucleus of the detecting material on our scenarios for dark matter. In addition, we study the implications for the search of invisible Higgs decay at LHC, which may serve as a probe of our scenario for dark matter.

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