Two Higgs doublet models for the LHC Higgs boson data at s$$ \sqrt{s} $$ = 7 and 8 TeV
Two Higgs doublet models for the LHC Higgs boson data at s$$ \sqrt{s} $$ = 7 and 8 TeV
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DOI：
10.1007/jhep09(2014)101
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发表时间：
2013-10
影响因子：
5.4
通讯作者：
Sanghyeon Chang;S. Kang;Jong-Phil Lee;Kang Young Lee;S. Park;Jeonghyeon Song
中科院分区：
文献类型：
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作者：
Sanghyeon Chang;S. Kang;Jong-Phil Lee;Kang Young Lee;S. Park;Jeonghyeon Song
更新的LHC数据的新的126 GeV玻色子在7和8 TeV运行加强标准模型希格斯玻色子的解释进一步。通过全局χ 2拟合分析，我们考察了新粒子是否可能是两个Higgs偶线模型中的标量粒子之一.综合研究了四种类型的模型（I，II，X和Y）。考虑到最近对新玻色子自旋宇称的分析，我们采用两种方案：轻CP偶玻色子和重CP偶玻色子。结果发现，目前的LHC Higgs数据约束模型相当强烈。在II、X和Y型中，仅允许沿着去耦线的窄区域和单独的小岛。类型I是例外的，具有更大的允许空间。我们还发现，目前的数据是兼容的可能性，轻希格斯玻色子h 0是隐藏在90-100 GeV的质量窗口。
Updated LHC data on the new 126 GeV boson during the 7 and 8 TeV runnings strengthen the standard model Higgs boson interpretation further. Through global χ 2 fit analysis, we investigate whether the new particle could be one of the scalar particles in two Higgs doublet models. Four types of the model (I, II, X and Y) are comprehensively studied. Considering the recent analysis on the spin-parity of the new boson, we take two scenarios: it is either the lighter CP-even one or the heavier CP-even one. It is found that the current LHC Higgs data constrain the model quite strongly. Only narrow region along the decoupling line and a separate small island are allowed in Type II, X, and Y. Type I is exceptional with much larger allowed space. We also find that the current data are compatible with the possibility that the light Higgs boson h 0 is hidden in the mass window of 90-100 GeV.