The University of Southampton
University of Southampton Institutional Repository

Flavour-dependent leptogenesis with sequential dominance

Flavour-dependent leptogenesis with sequential dominance
Flavour-dependent leptogenesis with sequential dominance
We study thermal leptogenesis in classes of neutrino mass models based on the seesaw mechanism with three right-handed neutrinos and sequential right-handed neutrino dominance. The flavour-dependent Boltzmann equations are solved appropriately to both the Standard Model and the Minimal Supersymmetric Standard Model. Within these classes of models we investigate constraints and expectations on the individual decay asymmetries and wash-out parameters from the present data on neutrino masses and mixings. In many cases of physical interest, flavour effects are shown to have important consequences for the estimation of the baryon asymmetry produced in leptogenesis. We also establish and analyse the link between the leptonic CP violating phase ?, observable in neutrino oscillations, and the CP violation required for leptogenesis, where flavour-dependent effects have a significant effect. In general our results show that flavour-dependent effects cannot be ignored when dealing with three right-handed neutrino models.
cosmological neutrinos, baryon asymmetry
1475-7516
11
Antusch, S.
5c4a4555-199c-4b90-9590-f4c392ee850c
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Riotto, A.
ab1a2a0f-897c-41e2-9159-633239210b4e
Antusch, S.
5c4a4555-199c-4b90-9590-f4c392ee850c
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Riotto, A.
ab1a2a0f-897c-41e2-9159-633239210b4e

Antusch, S., King, S.F. and Riotto, A. (2006) Flavour-dependent leptogenesis with sequential dominance. Journal of Cosmology and Astroparticle Physics, 11, 11. (doi:10.1088/1475-7516/2006/11/011).

Record type: Article

Abstract

We study thermal leptogenesis in classes of neutrino mass models based on the seesaw mechanism with three right-handed neutrinos and sequential right-handed neutrino dominance. The flavour-dependent Boltzmann equations are solved appropriately to both the Standard Model and the Minimal Supersymmetric Standard Model. Within these classes of models we investigate constraints and expectations on the individual decay asymmetries and wash-out parameters from the present data on neutrino masses and mixings. In many cases of physical interest, flavour effects are shown to have important consequences for the estimation of the baryon asymmetry produced in leptogenesis. We also establish and analyse the link between the leptonic CP violating phase ?, observable in neutrino oscillations, and the CP violation required for leptogenesis, where flavour-dependent effects have a significant effect. In general our results show that flavour-dependent effects cannot be ignored when dealing with three right-handed neutrino models.

Full text not available from this repository.

More information

Published date: 27 November 2006
Keywords: cosmological neutrinos, baryon asymmetry

Identifiers

Local EPrints ID: 56988
URI: https://eprints.soton.ac.uk/id/eprint/56988
ISSN: 1475-7516
PURE UUID: ccaa9045-f5a1-41cd-bf53-37c2b8e56bb6

Catalogue record

Date deposited: 13 Aug 2008
Last modified: 13 Mar 2019 20:34

Export record

Altmetrics

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 https://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.

×