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arXiv 1208.4952hep-ph
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两个希格斯玻色子在Tevatron和LHC?

Two Higgs Bosons at the Tevatron and the LHC?

G. Belanger, U. Ellwanger, J. F. Gunion, Y. Jiang, S. Kraml

摘要:

最适合Tevatron的结果是bb通道,CMS在136 GeV的γ-γ通道和132 GeV以上的τ-τ通道中的轻度过量可以通过在这个质量范围内的第二个希格斯状态来解释,除了最近在LHC发现的125 GeV的希格斯状态之外。我们表明,在125 GeV和136 GeV的两个希格斯玻色子玻色子的情况下,可以与几乎所有可用的信号速率,包括降低率的τ-τ通道约125 GeV的CMS报告。给出了一般NMSSM参数空间中的一个例子,其中,此外,125 GeV的希格斯玻色子在伽马-伽马通道中的信号速率相对于该质量的SM希格斯玻色子的期望被增强。

英文摘要:

The best fit to the Tevatron results in the bb channel and the mild excesses at CMS in the gamma-gamma channel at 136 GeV and in the tau-tau channel above 132 GeV can be explained by a second Higgs state in this mass range, in addition to the one at 125 GeV recently discovered at the LHC. We show that a scenario with two Higgs bosons at 125 GeV and 136 GeV can be consistent with practically all available signal rates, including a reduced rate in the tau-tau channel around 125 GeV as reported by CMS. An example in the parameter space of the general NMSSM is given where, moreover, the signal rates of the 125 GeV Higgs boson in the gamma-gamma channels are enhanced relative to the expectation for a SM Higgs boson of this mass.

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