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Leptogenesis in the E6SSM

Record type: Article

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 U1 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?

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Citation

King, S.F., Luo, R., Miller, D.J. and Nevzorov, R. (2008) Leptogenesis in the E6SSM Journal of Physics: Conference Series, 110, (8), 082009-[3pp]. (doi:10.1088/1742-6596/110/8/082009).

More information

Published date: 2008
Keywords: particle physics and field theory

Identifiers

Local EPrints ID: 144099
URI: http://eprints.soton.ac.uk/id/eprint/144099
ISSN: 1742-6588
PURE UUID: fd04e580-9067-4845-9e84-e91aae0d89e6

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Date deposited: 26 Apr 2011 13:22
Last modified: 18 Jul 2017 23:08

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Contributors

Author: S.F. King
Author: R. Luo
Author: D.J. Miller
Author: R. Nevzorov

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