Symmetry non-restoration via order 10(-10) B and L asymmetries

McDonald, John (1999) Symmetry non-restoration via order 10(-10) B and L asymmetries. Physics Letters B, 463 (2-4). pp. 225-229. ISSN 0370-2693

Full text not available from this repository.

Abstract

It has been observed that a large lepton asymmetry, n(L)/s approximate to 0.1, can prevent the Higgs expectation value from going to zero at high temperature, resulting in the non-restoration of the SU(2) x U(1) gauge symmetry and other symmetries. This could allow for the elimination of domain walls and other dangerous topological defects. Here we show that if the reheating temperature after inflation, T-R is sufficiently low then symmetry non-restoration will occur with an asymmetry of the order of the observed baryon asymmetry, n(B)/s approximate to 10(-10). For this to occur T-R less than or similar to 1 GeV is necessary. Remarkably, this happens to be the reheating temperature expected in Affleck-Dine baryogenesis along a d = 6 flat direction of the MSSM. As an example, we show that this can neatly solve the Z(3), domain wall problem of the NMSSM.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
83236
Deposited By:
Deposited On:
29 Nov 2016 09:44
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2020 06:30