Consistency of LEP event excesses with an h→aa decay scenario and low-fine-tuning next-to-minimal supersymmetric standard models

被引：138

作者：

Dermisek, Radovan ^{[1
]}

Gunion, John F.

机构：

[1] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA

[2] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

来源：

PHYSICAL REVIEW D | 2006年 / 73卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.73.111701

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine the LEP limits for the Zh -> Z+b's final state and find that the excess of observed events for m(h)similar to 100 GeV correlates well with there being an m(h)similar to 100 GeV Higgs boson with SM-like ZZh coupling that decays partly via h -> b (b) over bar+tau(+)tau(-) [with B(h -> b (b) over bar)similar to 0.08] but dominantly via h -> aa [with B(h -> aa)similar to 0.9], where m(a)< 2m(b) so that a ->tau(+)tau(-) (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.

引用

页数：5

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