Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-05-13
Phys.Rept.320:187-198,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, LaTex, 4 ps figures, Submitted to special issue of Phys.Reports dedicated to 70th birthday of L.B.Okun
Scientific paper
10.1016/S0370-1573(99)00068-X
The status of the Higgs boson mass in the Standard Model and its supersymmetric extensions is reviewed and the perspectives of Higgs searches are discussed. The parameter space of the Minimal Supersymmetric Standard Model (MSSM) is analysed with the emphasis on the lightest Higgs mass. The infrared behaviour of renormalization group equations for the parameters of MSSM is examined and infrared quasi-fixed points are used for the Higgs mass predictions. They strongly suggest the Higgs mass to be lighter than 100 or 130 GeV for low and high $\tan\beta$ scenarios, respectively. Extended models, however, allow one to increase these limits for low $\tan\beta$ up to 50%.
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