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中国博士后科学基金(2012M510248)

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发文基金:中国博士后科学基金国家自然科学基金更多>>
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Production and decay of the 125 GeV Higgs boson in the littlest Higgs model with T-parity
2013年
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.
曾庆国杨硕岳崇兴陈连松
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