Leptogenesis in B-L gauged SUSY with MSSM Higgs sector

Details Leptogenesis in B-L gauged SUSY with MSSM Higgs sector Leptogenesis in B-L gauged SUSY with MSSM Higgs sector

2010-12-15

arxiv.org/abs/1012.3288v3

Phys.Rev.D83:055001,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 6 figures, published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.83.055001

We study a modified version of a $U(1)_{B-L}$ gauged MSSM that was recently shown to produce a new source of leptogenesis through the CP asymmetry of sneutrinos and antisneutrinos (K.S. Babu, Y. Meng, Z. Tavartkiladze, Phys Lett B681:37 (2009)). By taking all superpotential terms and couplings between the MSSM Higgs and $B-L$ scalar sectors into account we find that the model allows a large enough CP violation to explain the observed baryon number to entropy ratio. Monte Carlo analysis shows that a large amount of CP violation can be produced in the decays of the $B-L$ Higgs bosons and that there are two dominating channels that drive CP violation.

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