Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8191747 | Physics Letters B | 2011 | 8 Pages |
Abstract
The constrained minimal supersymmetric standard model with μ>0 supplemented by an 'asymptotic' Yukawa coupling quasi-unification condition, which allows an acceptable b-quark mass, is reinvestigated. Imposing updated constraints from the cold dark matter abundance in the universe, B physics, the muon anomalous magnetic moment, and the mass mh of the lightest neutral CP-even Higgs boson, we find that the allowed parameter space is quite limited but not unnaturally small with the cold dark matter abundance suppressed only via neutralino-stau coannihilations. The lightest neutralino with mass in the range (341-677)GeV is possibly detectable in the future direct cold dark matter searches via its spin-independent cross section with nucleon. In the allowed parameter space of the model, we obtain mh=(117-122.2)GeV.
Related Topics
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Authors
N. Karagiannakis, G. Lazarides, C. Pallis,