Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-08-18
JHEP 0009:031,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages, 6 figures
Scientific paper
10.1088/1126-6708/2000/09/031
We analyze the Higgs sector in the Next-to-Minimal Supersymmetric Standard Model, emphasizing the possibility of a light CP-odd scalar (axion) in the spectrum. We compute the coupling of the Standard-Model-like Higgs boson to a pair of axions, and show that it can be large enough to modify the Higgs branching fractions, with a significant impact on the Higgs searches. We delineate the range of parameters relevant for this scenario, and also derive analytic expressions for the scalar masses and couplings in two special cases - a decoupling limit where all scalars other than the axion are heavier than the Standard-Model-like Higgs boson, and the large tan beta limit.
Dobrescu Bogdan A.
Matchev Konstantin T.
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