Neutralino Dark Matter in BMSSM Effective Theory

Details Neutralino Dark Matter in BMSSM Effective Theory Neutralino Dark Matter in BMSSM Effective Theory

2009-06-03

arxiv.org/abs/0906.0583v1

JCAP 0908:035,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

37 pages + appendix

Scientific paper

10.1088/1475-7516/2009/08/035

We study thermal neutralino dark matter in an effective field theory extension of the MSSM, called "Beyond the MSSM" (BMSSM) in Dine, Seiberg and Thomas (2007). In this class of effective field theories, the field content of the MSSM is unchanged, but the little hierarchy problem is alleviated by allowing small corrections to the Higgs/higgsino part of the Lagrangian. We perform parameter scans and compute the dark matter relic density. The light Higgsino LSP scenario is modified the most; we find new regions of parameter space compared to the standard MSSM. This involves interesting interplay between the WMAP dark matter bounds and the LEP chargino bound. We also find some changes for gaugino LSPs, partly due to annihilation through a Higgs resonance, and partly due to coannihilation with light stops in models that are ruled in by the new effective terms.

Affiliated with

Also associated with

No associations

Rating

Neutralino Dark Matter in BMSSM Effective Theory 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 Neutralino Dark Matter in BMSSM Effective Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutralino Dark Matter in BMSSM Effective Theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-193215