Light Higgs bosons in NMSSM at the LHC

被引：19

作者：

Guchait, Monoranjan ^{[1
]}

Kumar, Jacky ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Dept High Energy Phys, 1 Homi Bhabha Rd, Bombay 400005, Maharashtra, India

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2016年 / 31卷 / 12期

关键词：

Supersymmetry; Higgs boson; RADIATIVE-CORRECTIONS; DARK-MATTER; SUPERSYMMETRIC MODELS; STANDARD MODEL; MASSES; PROGRAM; SCALAR; SIGNAL; ELECTROWEAK; COLLIDERS;

D O I：

10.1142/S0217751X1650069X

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The next-to-minimal supersymmetric standard model (NMSSM) with an extended Higgs sector offers one of the Higgs boson as the Standard model (SM) like Higgs with a mass around 125 GeV along with other Higgs bosons with lighter and heavier masses and not excluded by any current experiments. At the LHC, phenomenology of these non SM like Higgs bosons is very rich and considerably different from the other supersymmetric models. In this work, assuming one of the Higgs bosons to be the SM like, we revisit the mass spectrum and couplings of non SM like Higgs bosons taking into consideration all existing constraints and identify the relevant region of parameter space. The discovery potential of these non SM like Higgs bosons, apart from their masses, is guided by their couplings with gauge bosons and fermions which are very much parameter space sensitive. We evaluate the rates of productions of these non SM like Higgs bosons at the LHC for a variety of decay channels in the allowed region of the parameter space. Although bb, {\tau}{\tau} decay modes appear to be the most promising, it is observed that for a substantial region of parameter space the two-photon decay mode has a remarkably large rate. In this work we emphasize that this diphoton mode can be exploited to find the NMSSM Higgs signal and can also be potential avenue to distinguish the NMSSM from the MSSM. In addition, we discuss briefly the various detectable signals of these non SM Higgs bosons at the LHC.

引用

页数：31

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