1998/01/05 by James M. Cline, J. M. Cline, Cline, J. M.
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9801213
8 pages, 6 figures, latex; plenary talk given at COSMO-97 conference, Ambleside, England, 15-19 Sept., 1997. This is an expanded version of hep-ph/9708399, with emphasis on latest constraints from LEP 2
arxiv created 1998/01/05 · openalex publication_date 1998/01/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
I describe work done in collaboration with M. Joyce and K. Kainulainen on (1) the strength of the electroweak phase transition in the MSSM and (2) the mechanism for producing the baryon asymmetry during the phase transition. In the former we compare the effective potential and dimensional reduction methods for describing the phase transition and search the parameter space of the MSSM for those values where it is strong enough. In the latter we give a systematic computation of the baryon asymmetry due the CP-violating force acting on charginos in the vicinity of the bubble wall. We find that a light right-handed stop, a light Higgs boson, and a large phase in the mu parameter, are the main necessary ingredients for producing the baryon asymmetry.