SUSY Enhancement of Heavy Higgs Production

Details SUSY Enhancement of Heavy Higgs Production SUSY Enhancement of Heavy Higgs Production

2011-06-22

arxiv.org/abs/1106.4385v4

IJMPA Volume: 26, Issue: 24(2011) pp. 4187-4202

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 6 figures. We added figure and made some clarification. Published version

Scientific paper

10.1142/S0217751X11054498

We study the cross-section of heavy Higgs production at the LHC within the framework of the Constrained MSSM. It is not only enhanced by tan^2 beta but sometimes is also enhanced by the squark contribution. First, we consider the universal scenario within mSUGRA and find out that to get the desired enhancement one needs large negative values of A_0, which seems to be incompatible with the b->s gamma decay rate. To improve the situation, we release the unification requirement in the Higgs sector. Then it becomes possible to satisfy all requirements simultaneously and enhance the squark contribution. The latter can gain a factor of several units increasing the overall cross-section which, however, is still smaller than the cross-section of the associated H b bbar production. We consider also some other consequences of the chosen benchmark point.

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