Squarks and sphalerons
Abstract
Electric charge and color breaking minima along third generation squark directions do appear in the Minimal Supersymmetric Standard Model for particular regions of the corresponding supersymmetric parameters A_{t}, μ, tan β,m^{2}_{Q} and m^{2}_{U}. We have studied possible instabilities of electroweak sphalerons along nontrivial squark configurations. We have found that instabilities along the latter lie in the region of parameter space where the electroweak minimum is not the global one. Thus charge and color conservation imply that the standard electroweak sphaleron is not destabilized along squark directions.
 Publication:

Physics Letters B
 Pub Date:
 February 1997
 DOI:
 10.1016/S03702693(97)000580
 arXiv:
 arXiv:hepph/9612212
 Bibcode:
 1997PhLB..395..234M
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 11 pages, LateX + psfig.sty, 1 figure