Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-12-02
Eur.Phys.J.C28:133-143,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, 5 figures, reference added. Version to appear in Eur. Phys. Jour. C
Scientific paper
10.1140/epjc/s2003-01152-2
The status of the evaluation of the MSSM Higgs sector is reviewed. The phenomenological impact of recently obtained corrections is discussed. In particular it is shown that the upper bound on m_h within the MSSM is shifted upwards. Consequently, lower limits on tan beta obtained by confronting the upper bound as function of tan beta with the lower bound on m_h from Higgs searches are significantly weakened. Furthermore, the region in the M_A-tan beta-plane where the coupling of the lightest Higgs boson to down-type fermions is suppressed is modified. The presently not calculated higher-order corrections to the Higgs-boson mass matrix are estimated to shift the mass of the lightest Higgs boson by up to 3 GeV.
Degrassi Giuseppe
Heinemeyer Sven
Hollik Wolfgang
Slavich Pietro
Weiglein Georg
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