GUT-inspired supersymmetric model for h → γγ and the muon g-2

被引：20

作者：

Ajaib, M. Adeel ^{[1
]}

Gogoladze, Ilia ^{[2
]}

Shafi, Qaisar ^{[2
]}

机构：

[1] Ursinus Coll, Dept Phys & Astron, Collegeville, PA 19426 USA

[2] Univ Delaware, Bartol Res Inst, Dept Phys & Astron, Newark, DE 19716 USA

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 09期

基金：

美国国家科学基金会;

关键词：

EVEN HIGGS BOSONS; MSSM; BREAKING; MASSES; DECAY;

D O I：

10.1103/PhysRevD.91.095005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study a grand unified theories inspired supersymmetric model with nonuniversal gaugino masses that can explain the observed muon g - 2 anomaly while simultaneously accommodating an enhancement or suppression in the h -> gamma gamma decay channel. In order to accommodate these observations and m(h) similar or equal to 125 to 126 GeV, the model requires a spectrum consisting of relatively light sleptons whereas the colored sparticles are heavy. The predicted stau mass range corresponding to R-gamma gamma >= 1.1 is 100 GeV less than or similar to m (tau) over tilde less than or similar to 200 GeV. The constraint on the slepton masses, particularly on the smuons, arising from considerations of muon g - 2 is somewhat milder. The slepton masses in this case are predicted to lie in the few hundred GeV range. The colored sparticles turn out to be considerably heavier with m (g) over tilde greater than or similar to 4.5 TeV and m (t(1)) over tilde greater than or similar to 3.5 TeV, which makes it challenging for these to be observed at the 14 TeV LHC.

引用

页数：10

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