arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1602.01934hep-phhep-ex
收藏

从$t\bar{t}H$和$t\bar{t}t\bar{t}$产品探测Higgs宽度和顶夸克汤川耦合

Probing Higgs Width and Top Quark Yukawa Coupling from $t\bar{t}H$ and $t\bar{t}t\bar{t}$ Productions

Qing-Hong Cao, Shao-Long Chen, Yandong Liu

摘要:

我们证明了四顶夸克产生是一个强有力的工具,以限制顶部汤川耦合。这个约束是稳健的,因为它不依赖于希格斯玻色子衰变。考虑到ATLAS碰撞对$t\bar{t}H$产生的投影,我们在14 TeV LHC上得到了希格斯玻色子宽度的一个界$Γ_H\leq 3.1~Γ_H^{\rm SM}$,积分亮度光度为$300~{\rm fb}^{-1}$ .增加$500~{\rm fb}^{-1}$的亮度产生$Γ_H\leq 2.1~Γ_H^{\rm SM}$。

英文摘要:

We demonstrate that four top-quark production is a powerful tool to constrain the top Yukawa coupling. The constraint is robust in the sense that it does not rely on the Higgs boson decay. Taking into account the projection of the $t\bar{t}H$ production by the ATLAS collaobration, we obtain a bound on Higgs boson width, $Γ_H\leq 3.1~Γ_H^{\rm SM}$, at the 14 TeV LHC with an integrated luminosity of $300~{\rm fb}^{-1}$. Increasing the luminosity to $500~{\rm fb}^{-1}$ yields $Γ_H\leq 2.1~Γ_H^{\rm SM}$.

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。

↑