The minimal supersymmetric extension of the standard model
(MSSM) is the simplest realistic SUSY theory.
The Higgs sector in the MSSM consists of two charged and three
neutral scalar bosons. Assuming CP-invariance, one of the
neutral bosons (A) is CP-odd, and the other two (h,H) are
CP-even. Here we use h (H) for the lighter
(heavier) CP-even neutral Higgs boson, and φ to denote any
of h,H,A. At tree level, the MSSM Higgs bosons are described
by the mass of A (mA), and
tanβ=vu/vd, where vu, vd
are the vacuum expectation values of the neutral Higgs fields that couple to up-type and
down-type fermions, respectively. The Yukawa couplings of A to
down-type fermions are
enhanced by a factor of tanβ relative to the SM. For large
tanβ one of the CP-even bosons is nearly mass-degenerate
with A and has similar couplings.
The dominant production mechanisms of neutral MSSM Higgs
bosons at hadron colliders are gluon fusion and
bb fusion. The leading decay
modes of A and the corresponding mass-degenerate CP-even Higgs
boson are φ → bb (~90%) and
φ→ττ (~10%).
Radiative corrections can significantly modify the MSSM Higgs production cross sections and branching fractions, and introduce dependence on additional model parameters. The results are usually interpreted in predefined "benchmark scenarios" that serve as representative points in the (large) SUSY parameter space. Information on generaly used benchmark scenarios can be found in Carena et al. (1999) and Carena et al. (2002). The authors of these papers have produced an updated and very comprehensive review of the treatment of radiative corrections in the MSSM Higgs sector: M. Carena, S. Heinemeyer, C.E.M. Wagner, and G. Weiglein, hep-ph/0511023 (2005). In my opinion this is one of the "must read" papers for any experimentalist working in the field.
Radiative corrections can significantly modify the MSSM Higgs production cross sections and branching fractions, and introduce dependence on additional model parameters. The results are usually interpreted in predefined "benchmark scenarios" that serve as representative points in the (large) SUSY parameter space. Information on generaly used benchmark scenarios can be found in Carena et al. (1999) and Carena et al. (2002). The authors of these papers have produced an updated and very comprehensive review of the treatment of radiative corrections in the MSSM Higgs sector: M. Carena, S. Heinemeyer, C.E.M. Wagner, and G. Weiglein, hep-ph/0511023 (2005). In my opinion this is one of the "must read" papers for any experimentalist working in the field.
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Last update 12/08/2005