Use this URL to cite or link to this record in EThOS:
Title: Baryogenesis constraints on the electroweak phase transition in two-Higgs-doublet models
Author: Jenkins, Gordon
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 1997
Availability of Full Text:
Access from EThOS:
Access from Institution:
The preservation of the baryon asymmetry of the universe (BAU) after the electroweak phase transition (EW PT) is endangered by baryon-number violating sphaleron transitions. Limits on the sphaleron transition rate in order to protect the BAU require a strongly first order EW PT and lead to an upper mass limit on the Standard Model Higgs scalar mass of around 60GeV. This is in direct disagreement with the experimental lower limit on the SM Higgs mass, which is now greater than 60GeV.I consider the problem of avoiding this disagreement by extending the scalar sector of the SM to include a second complex scalar Higgs doublet. My primary aim is to locate a region of the parameter space which can sustain the first order EW PT required for baryogenesis and satisfy the experimental bounds on Higgs masses.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available