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arXiv 1206.1673hep-phhep-ex
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最近的希格斯玻色子数据和含矢量夸克的希格斯三重态模型

The recent Higgs boson data and Higgs triplet model with vectorlike quarks

Lei Wang, Xiao-Fang Han

摘要:

在Higgs三重态模型中加入了一些矢量夸克,目的是为了拟合LHC和Tevatron最近公布的希格斯玻色子玻色子数据。这些类矢量夸克可以大幅度地抑制$gg\to h$的截面,而带电标量,特别是双带电标量,可以更大幅度地增强$Br(h\to γγ)$.此外,Higgs与$WW$、$ZZ$和轻费米子的耦合可以与它们的SM值相同。因此,该模型将提高希格斯粒子生成$γγ$和$jjγγ$的速率,而在LHC上生成$WW^*$、$ZZ^*$和$τ\barτ$的速率相对于它们的SM预测是降低的。在Tevatron中,Higgs生成$Vb\bar{b}$的速率与SM值相同。

英文摘要:

Some vectorlike quarks are added to the Higgs triplet model with the motivation of fitting the recent Higgs boson data released by LHC and Tevatron collaborations. These vectorlike quarks can suppress the cross section of $gg\to h$ sizably, while the charged scalars, especially for the doubly charged scalar, can enhance $Br(h\to γγ)$ more sizably. Besides, the Higgs couplings to $WW$, $ZZ$ and light fermions can be the same as their SM values. Thus, the model will enhance the Higgs production rates into $γγ$ and $jjγγ$, while those for $WW^*$, $ZZ^*$ and $τ\barτ$ at the LHC are reduced relative to their SM predictions. The Higgs production rates into $Vb\bar{b}$ at the Tevatron are the same as the SM values.

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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