Leptogenesis in the E(6)SSM

King, S.F., Luo, R., Miller, D.J. and Nevzorov, R. (2008) Leptogenesis in the E(6)SSM. Journal of Physics: Conference Series, 110, 082009. (doi: 10.1088/1742-6596/110/8/082009)

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We investigate leptogenesis in the E6 inspired Exceptional Supersymmetric Standard Model (E6SSM). Right-handed (RH) neutrinos are singlets under the Standard Model gauge groups and the extra U 1 gauge group of the E6SSM at low energies and are therefore not involved in gauge interactions. This allows them to have Majorana mass large enough for the seesaw mechanism and leptogenesis. In addition to canonical leptogenesis, the RH neutrinos may decay into exotic leptons and leptoquarks, the subsequent decays of which lead to extra lepton asymmetries. We find that the lepton asymmetry can be drastically enhanced as compared with that in the SM and MSSM?

Item Type:Articles
Glasgow Author(s) Enlighten ID:Miller, Dr David
Authors: King, S.F., Luo, R., Miller, D.J., and Nevzorov, R.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Physics: Conference Series
Publisher:IOP Publishing Ltd.
ISSN (Online):1742-6596
Copyright Holders:Copyright c 2008 IOP Publishing Ltd
First Published:First published in Journal of Physics: Conference Series 110:082009
Publisher Policy:Published under licence by IOP Publishing Ltd

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