The University of Southampton
University of Southampton Institutional Repository

Gauge coupling unification in the exceptional supersymmetric standard model

King, S. F., Moretti, S. and Nevzorov, R. (2007) Gauge coupling unification in the exceptional supersymmetric standard model Physics Letters B, 650, (1), pp. 57-64. (doi:10.1016/j.physletb.2007.04.061).

Record type: Article


We consider the renormalisation group flow of gauge couplings within the so-called exceptional supersymmetric Standard Model (E6SSM) based on the low-energy matter content of 27-dimensional representations of the gauge group E6, together with two additional non-Higgs doublets. The two-loop beta functions are computed, and the threshold corrections are studied in the E6SSM. Our results show that gauge coupling unification in the E6SSM can be achieved for phenomenologically acceptable values of ?3(MZ), consistent with the central measured low-energy value, unlike in the minimal supersymmetric Standard Model (MSSM) which, ignoring the effects of high energy threshold corrections, requires significantly higher values of ?3(MZ), well above the experimentally measured central value.

Full text not available from this repository.

More information

Submitted date: 2 February 2007
Published date: 21 June 2007


Local EPrints ID: 57381
ISSN: 0370-2693
PURE UUID: 96128b36-a71d-4924-9403-13b28bc18422

Catalogue record

Date deposited: 14 Aug 2008
Last modified: 17 Jul 2017 14:29

Export record



Author: S. F. King
Author: S. Moretti
Author: R. Nevzorov

University divisions

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 supports OAI 2.0 with a base URL of

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.