Consistency of LEP event excesses with anh→aadecay scenario and low-fine-tuning next-to-minimal supersymmetric standard models

We examine the LEP limits for the Zh→Z+b's final state and find that the excess of observed events for mₕ~100 GeV correlates well with there being an mₕ~100 GeV Higgs boson with SM-like $ZZh$ coupling that decays partly via h→bb̄+τ⁺τ^- [with B(h→bb̄)~0.08] but dominantly via h→aa [with B(h→aa)~0.9], where mₐ<2mb so that a→τ⁺τ^- (or light quarks and gluons) decays are dominant. This type of scenario is precisely that predicted in the Next-to-Minimal Supersymmetric Model for parameter choices yielding the lowest possible fine-tuning.