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WMAP constraints on SUGRA models with non-universal gaugino masses and prospects for direct detection | | G.Belanger
; F.Boudjema
; A.Cottrant
; A. Pukhov
; A. Semenov
; | | Date: |
19 Jul 2004 | | Journal: | Nucl.Phys. B706 (2005) 411-454 | | Subject: | hep-ph | | Abstract: | We discuss constraints on supersymmetric models arising from the relic density measurements of WMAP as well as from direct and precision measurements, LEP, b-sgamma, g-2, Bs-mumu. We consider mSUGRA models and their extensions with non-universal gaugino masses. We find, as commonly known, that the relic density pinpoints towards very specific regions of the mSUGRA models: coannihilation, focus and Heavy Higgs annihilation. The allowed regions widen significantly when varying the top quark mass. Introducing some non-universality in the gaugino masses significantly changes this conclusion as in specific non-universal models the relic density upper limit can be easily satisfied. This occurs with models where M1>M2 at the GUT scale when the LSP has a high wino component. Models where M3 | | Source: | arXiv, hep-ph/0407218 | | Services: | Forum | Review | PDF | Favorites | |
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