BMSSM Implications for Cosmology

Details BMSSM Implications for Cosmology BMSSM Implications for Cosmology

2009-06-25

arxiv.org/abs/0906.4696v2

JHEP 0908:053,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 4 figures. References added

Scientific paper

10.1088/1126-6708/2009/08/053

The addition of non-renormalizable terms involving the Higgs fields to the MSSM (BMSSM) ameliorates the little hierarchy problem of the MSSM. We analyze in detail the two main cosmological issues affected by the BMSSM: dark matter and baryogenesis. The regions for which the relic abundance of the LSP is consistent with WMAP and collider constraints are identified, showing that the bulk region and other previously excluded regions are now permitted. Requiring vacuum stability limits the allowed regions. Based on a two-loop finite temperature effective potential analysis, we show that the electroweak phase transition can be sufficiently first order in regions that for the MSSM are incompatible with the LEP Higgs mass bound, including parameter values of \tan\beta \lsim 5, m_{\tilde{t}_{1}} > m_t, m_Q << TeV.

Affiliated with

Also associated with

No associations

Rating

BMSSM Implications for Cosmology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with BMSSM Implications for Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and BMSSM Implications for Cosmology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-537490