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arXiv 1105.3965hep-ph
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使用强子对撞机Higgs信号的限制排除第四代

Ruling out a 4th generation using limits on hadron collider Higgs signals

John F. Gunion

摘要:

我们认为,第四代对希格斯粒子的影响$γγ$和$WW,ZZ$信号,并表明,Tevatron和大型强子对撞机基本上消除了第四代的可能性,如果希格斯粒子是SM样的,并具有低于200 GeV的质量。我们还表明,在$γγ$和$WW,ZZ$最终状态的电流数据集的增强希格斯信号的情况下,可以强烈地约束第四代的可能性,在两个希格斯偶模型的II型,包括MSSM。

英文摘要:

We consider the impact of a 4th generation on Higgs to $γγ$ and $WW,ZZ$ signals and demonstrate that the Tevatron and LHC have essentially eliminated the possibility of a 4th generation if the Higgs is SM-like and has mass below 200 GeV. We also show that the absence of enhanced Higgs signals in current data sets in the $γγ$ and $WW,ZZ$ final states can strongly constrain the possibility of a 4th generation in two-Higgs-doublet models of type II, including the MSSM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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