Naturalness bounds in extensions of the MSSM without a light Higgs boson

Details Naturalness bounds in extensions of the MSSM without a light Higgs boson Naturalness bounds in extensions of the MSSM without a light Higgs boson

2010-04-08

arxiv.org/abs/1004.1271v4

JHEP 1005:068,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 5 figures. v2: minor revision, added references. v3,v4: some numerical corrections

Scientific paper

Adopting a bottom-up point of view, we make a comparative study of the simplest extensions of the MSSM with extra tree level contributions to the lightest Higgs boson mass. We show to what extent a relatively heavy Higgs boson, up to 200-350 GeV, can be compatible with data and naturalness. The price to pay is that the theory undergoes some change of regime at a relatively low scale. Bounds on these models come from electroweak precision tests and naturalness, which often requires the scale at which the soft terms are generated to be relatively low.

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