Radion-Higgs-boson mixing state at the LHC with the Kaluza-Klein contributions to the production and decay

被引：14

作者：

Kubota, Hirohisa ^{[1
]}

Nojiri, Mihoko ^{[2
,3
]}

机构：

[1] KEK Theory Ctr, Tsukuba, Ibaraki 3050801, Japan

[2] Grad Univ Adv Studies Sokendai, Dept Particle & Nucl Phys, Tsukuba, Ibaraki 3050801, Japan

[3] Univ Tokyo, IPMU, Kashiwa, Chiba 2778583, Japan

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 07期

关键词：

DIMENSIONS; HIERARCHY; FIELDS;

D O I：

10.1103/PhysRevD.87.076011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we study the Higgs(h)-radion(r) system of the Randall-Sundum model where matter fermions and gauge fields live in the bulk while the Higgs boson resides on the infrared brane. We take into account the Kaluza-Klein loop correction to the hVV and rVV couplings where V = (g, gamma). Inspired by the LHC data in 2011 in which a hint of the Higgs boson has been seen at 125 GeV, we fix one of the mass eigenstates of the Higgs-radion mixed state at 125 GeV and scan over all the other parameters that have not been excluded by the 2011 Higgs search data. We find the regions of parameter space where the scalar particle at 125 GeV has a signal rate significantly larger or smaller than that of the Standard Model (SM) Higgs boson. The signal ratio Br(ZZ)/Br(gamma gamma) also may deviate from that of the SM Higgs boson. DOI: 10.1103/PhysRevD.87.076011

引用

页数：12

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