Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-03-05
Eur.Phys.J.C29:587-595,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 5 figures
Scientific paper
10.1140/epjc/s2003-01249-6
We study chargino pair production on the heavy Higgs resonances at a muon collider in the MSSM. At $\sqrt{s} \approx 350$ GeV cross sections up to 2 pb are reached depending on the supersymmetric scenario and the beam energy spread. The resonances of the scalar and pseudoscalar Higgs bosons may be separated for $\tan\beta <8$. Our aim is to determine the ratio of the chargino couplings to the heavy scalar and pseudoscalar Higgs boson independently of the specific chargino decay characteristics. The precision of the measurement depends on the energy resolution of the muon collider and on the error in the measurement of the cross sections of the non-Higgs channels including an irreducible standard model background. With a high energy resolution the systematic error can be reduced to the order of a few percent.
der Pahlen Federico von
Fraas Hans
Franke F.
Moortgat--Pick Gudrid
Wagner Alain
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