Gu, Pei-Hong ; Sarkar, Utpal (2008) B−L conserved baryogenesis Modern Physics Letters A, 23 (25). pp. 2047-2051. ISSN 0217-7323
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Official URL: http://www.worldscinet.com/mpla/23/2325/S021773230...
Related URL: http://dx.doi.org/10.1142/S0217732308027357
Abstract
In the presence of anomaly induced sphaleron process, only a B−L asymmetry can be partially converted to the baryon asymmetry while any B+L asymmetry would be completely erased. Thus in any successful baryogenesis theories, B−L is usually violated above the electroweak scale to explain the observed matter-antimatter asymmetry of the universe. However, if any lepton asymmetry is not affected by the sphaleron processes, a B−L conserved theory can still realize the baryogenesis. We present here an SU(5) GUT realization of this scenario, which naturally accommodates small masses of Dirac neutrinos.
Item Type: | Article |
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Source: | Copyright of this article belongs to World Scientific Publishing Company. |
Keywords: | B−L Conserved Baryogenesis; SU(5) Gut; Dirac Neutrinos |
ID Code: | 45434 |
Deposited On: | 28 Jun 2011 05:29 |
Last Modified: | 18 May 2016 01:42 |
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