Production and decay of the 125 GeV Higgs boson in the littlest Higgs model with T-parity

Motivated by recent search results for the standard model （SM） Higgs boson at the Large Hadron Collider （LHC）, we revisit the Higgs phenomenology in the littlest Higgs model with T-parity （LHT）. We present the signal strength modifier ix, respectively, for the main search channels qq＇→ jjh → jjγγ, q...

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Bibliographic Details
Published in:Chinese physics C 2013-05, Vol.37 (5), p.28-34
Main Author: 曾庆国 杨硕 岳崇兴 陈连松
Format: Article
Language:English
Subjects:
Channels
Decay
Hadrons
Higgs bosons
Luminosity
Mathematical models
Searching
Signal strength
信号强度
增强因子
大型强子对撞机
奇偶校验
希格斯玻色子
搜索结果
标准模型
衰变
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Summary:Motivated by recent search results for the standard model （SM） Higgs boson at the Large Hadron Collider （LHC）, we revisit the Higgs phenomenology in the littlest Higgs model with T-parity （LHT）. We present the signal strength modifier ix, respectively, for the main search channels qq＇→ jjh → jjγγ, qq＇→Vh →Vγγ, qq＇→Vh→ Vbb, gg→ h→ γγ, and gg→h→ VV in the LHT model. It is found that an enhancement factor of 1.09-1.56 in the qq＇→jjh→jjγγ channel can be obtained for this model in Case B with parameter f in the range 500 1000 GeV. However, the rates for bb, ττ are significantly suppressed relative to the SM predictions, which are still consistent with the current sensitivity. It is hoped that this will be further tested with larger integrated luminosity at the LHC.
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/37/5/054102