The University of Southampton
University of Southampton Institutional Repository

Leptogenesis in the exceptional supersymmetric standard model: flavour dependent lepton asymmetries

Leptogenesis in the exceptional supersymmetric standard model: flavour dependent lepton asymmetries
Leptogenesis in the exceptional supersymmetric standard model: flavour dependent lepton asymmetries
We calculate flavour dependent lepton asymmetries within the E6 inspired Supersymmetric Standard Model (E6SSM), which has an extra U(1)N symmetry. In this model, the right-handed neutrino doesn't participate in gauge interactions, allowing it to be used for both the see-saw mechanism and leptogenesis. Extra Higgs, leptons and leptoquarks predicted by the E6SSM contribute to the ordinary lepton CP asymmetries induced by the decays of the lightest right-handed neutrino (and sneutrino) and give rise to a set of extra decay asymmetries. We find that the CP asymmetries can be relatively large, even when the lightest right-handed neutrino is as light as 106 GeV.

1-39
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Luo, R.
ef33e8b4-300d-4aab-85df-0057412d5b66
Miller, D.J.
a230d4ba-cdd8-4e3b-8d96-3bc31863b7a8
Nevrozov, R.
d0a67f36-faba-4e2d-8896-67b63da6aa9e
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Luo, R.
ef33e8b4-300d-4aab-85df-0057412d5b66
Miller, D.J.
a230d4ba-cdd8-4e3b-8d96-3bc31863b7a8
Nevrozov, R.
d0a67f36-faba-4e2d-8896-67b63da6aa9e

King, S.F., Luo, R., Miller, D.J. and Nevrozov, R. (2008) Leptogenesis in the exceptional supersymmetric standard model: flavour dependent lepton asymmetries. Journal of High Energy Physics, 2008 (12), 1-39. (doi:10.1088/1126-6708/2008/12/042).

Record type: Article

Abstract

We calculate flavour dependent lepton asymmetries within the E6 inspired Supersymmetric Standard Model (E6SSM), which has an extra U(1)N symmetry. In this model, the right-handed neutrino doesn't participate in gauge interactions, allowing it to be used for both the see-saw mechanism and leptogenesis. Extra Higgs, leptons and leptoquarks predicted by the E6SSM contribute to the ordinary lepton CP asymmetries induced by the decays of the lightest right-handed neutrino (and sneutrino) and give rise to a set of extra decay asymmetries. We find that the CP asymmetries can be relatively large, even when the lightest right-handed neutrino is as light as 106 GeV.

This record has no associated files available for download.

More information

e-pub ahead of print date: 23 June 2008
Published date: 11 December 2008

Identifiers

Local EPrints ID: 144087
URI: http://eprints.soton.ac.uk/id/eprint/144087
PURE UUID: d37c9c27-db37-4024-9cfc-aa7aaaf652d4

Catalogue record

Date deposited: 26 Apr 2011 13:09
Last modified: 14 Mar 2024 00:45

Export record

Altmetrics

Contributors

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

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×