SUSY and the electroweak phase transition
Abstract
We analyze the effective threedimensional theory previously constructed for the MSSM and multiHiggs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the lowtemperature phase. We find that the inclusion of all supersymmetric scalars and all oneloop corrections has the effect of enhancing the strength of the phase transition. Without a light stop or extension of the MSSM the phase transition is sufficiently first order only if the lightest Higgs mass M_{h} <~ 70 GeV and tan β <~ 1.75.
 Publication:

Physics Letters B
 Pub Date:
 February 1997
 DOI:
 10.1016/S03702693(97)006631
 arXiv:
 arXiv:hepph/9612346
 Bibcode:
 1997PhLB..406...60F
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 17 pages, 6 figures, uses epsf