Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-11-13
Nucl.Phys. B652 (2003) 229-258
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, 14 figures, minor corrections, to appear in Nucl. Phys. B
Scientific paper
10.1016/S0550-3213(03)00002-6
In the Minimal Supersymmetric Standard Model (MSSM) we calculate the corrections to neutral CP-even Higgs-boson production in the WW-fusion and Higgs-strahlung channel, e+e- -> \bar nu nu {h,H}, at a future Linear Collider, taking into account all O(alpha) corrections arising from loops of fermions and sfermions. For the production of the lightest MSSM Higgs boson, h, we find genuine loop corrections (beyond the universal Higgs propagator corrections) of up to -5%. For the heavy CP-even neutral Higgs boson, H, which shows decoupling behavior at tree level, we find non-negligible corrections that can enhance the cross section considerably in parts of the MSSM parameter space. At a center-of-mass energy of \sqrt{s} = 1000 GeV, heavy CP-even Higgs-boson masses of up to M_H <= 700 GeV are accessible at the Linear Collider in favorable regions of the MSSM parameter space.
Hahn Thomas
Heinemeyer Sven
Weiglein Georg
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