Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-10-06
Eur.Phys.J.C52:397-411,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pages, 10 figures (two in colour). Substantially improved on the MSSM parameter restrictions taken into account. Added some
Scientific paper
10.1140/epjc/s10052-007-0397-1
We present a calculation of the cross section for the process e+ e- --> W+/- H-/+ in the minimal supersymmetric standard model (MSSM) and the Two Higgs Doublet Model (THDM). We study the basic features of the MSSM prediction for some distinctive parameter scenarios. We find large effects from virtual squarks for scenarios with large mixing in the stop sector which can lead to a cross section vastly different from a THDM with identical Higgs sector parameters. We investigate this interesting behaviour in more detail by thoroughly scanning the MSSM parameter space for regions of large cross section. For a charged Higgs boson too heavy to be pair-produced at such a machine, it turns out that a large MSSM cross section with a good chance of observation is linked to a squark mass scale below 600 GeV and a considerable amount of mixing in either the stop and sbottom sector.
Brein Oliver
Hahn Thomas
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