Inverse seesaw in NMSSM and 126 GeV Higgs boson

被引：22
|
作者：
Gogoladze, Ilia [1 ]
He, Bin [1 ]
Shafi, Qaisar [1 ]
机构：
[1] Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
来源：
PHYSICS LETTERS B | 2013年 / 718卷 / 03期
关键词：
ELECTROWEAK SYMMETRY-BREAKING; FINE-TUNING PRICE; NEUTRINO MASS; LIGHT; UNIFICATION; NATURALNESS; NUMBER;
D O I：
10.1016/j.physletb.2012.11.043
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider extensions of the next-to-minimal supersymmetric model (NMSSM) in which the observed neutrino masses are generated through a TeV scale inverse seesaw mechanism. The new particles associated with this mechanism can have sizable couplings to the Higgs field which can yield a large contribution to the mass of the lightest CP-even Higgs boson. With this new contribution, a 126 GeV Higgs is possible along with order of 200 GeV masses for the stop quarks for a broad range of tan beta. The Higgs production and decay in the diphoton channel can be' enhanced due to this new contribution. It is also possible to solve the little hierarchy problem in this model without invoking a maximal value for the NMSSM trilinear coupling and without severe restrictions on the value of tan beta. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：1008 / 1013
页数：6
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