Escaping the large fine tuning and little hierarchy problems in the next to minimal supersymmetric model and h ---> aa decays

We demonstrate that the NMSSM can have small fine tuning and modest light stop mass while still evading all experimental constraints. For small tan(beta) [large tan(beta)], the relevant scenarios are such that there is always (often) a SM-like Higgs boson that decays to two lighter -- possibly much lighter -- pseudoscalar Higgses.

Note:

4 pages, 4 figures, revised to conform with PRL published version

12.60.Jv
14.80.Cp
minimal supersymmetric standard model
CP invariance
spontaneous symmetry breaking
Higgs bosons
intermediate boson decay
grand unified theory
supersymmetry: symmetry breaking
CP: violation

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