Annihilating leptogenesis

Gu, Pei-Hong ; Sarkar, Utpal (2009) Annihilating leptogenesis Physics Letters B, 679 (2). pp. 118-121. ISSN 0370-2693

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.physletb.2009.07.029

Abstract

Leptogenesis is usually realized through decays of heavy particles. In this article we consider another possibility of generating a lepton asymmetry through annihilations of heavy particles. We demonstrate our idea with a realistic extension of the standard model containing a heavy doublet and a light singlet scalars in addition to right-handed neutrinos and Higgs triplets required for type-I+II seesaw of neutrino masses. We also clarify that this annihilating leptogenesis scenario can be naturally embedded in more fundamental theories, like left-right symmetric models or grand unified theories.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:45439
Deposited On:28 Jun 2011 05:31
Last Modified:18 May 2016 01:42

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