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arXiv 1901.04567hep-phhep-ex
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限制多顶产生的顶-希格斯相互作用和希格斯玻色子玻色子宽度

Limiting Top-Higgs Interaction and Higgs-Boson Width from Multi-Top Productions

Qing-Hong Cao, Shao-Long Chen, Yandong Liu, Rui Zhang, Ya Zhang

摘要:

我们证明了多top产生有效地探测了top-Higgs相互作用的CP性质和LHC上的希格斯玻色子玻色子宽度。在13~TeV LHC上,无论汤川耦合的大小如何,四个顶夸克的产生都可以排除积分亮度为$430~{\rm fb}^{-1}$的纯CP奇顶夸克汤川耦合。结合单个希格斯玻色子产生、$t\bar{t}H$关联产生和四个顶夸克产生,我们证明了顶夸克Yukawa耦合的CP相和希格斯玻色子的宽度在LHC上可以严格限制,并具有$300~{\rm fb}^{-1}$和$3000~{\rm fb}^{-1}$的积分亮度.

英文摘要:

We demonstrate that the multi-top productions efficiently probe the CP-property of top-Higgs interaction and the Higgs-boson width at the LHC. The four top-quark production alone can exclude a purely CP-odd top-quark Yukawa coupling at the 13~TeV LHC with an integrated luminosity of $430~{\rm fb}^{-1}$, regardless the size of the Yukawa coupling. Combining the single Higgs-boson production, the $t\bar{t}H$ associated production and the four top-quark production, we show that the CP-phase of the top-quark Yukawa coupling and the Higgs-boson width can be stringently bounded at the LHC with integrated luminosities of $300~{\rm fb}^{-1}$ and $3000~{\rm fb}^{-1}$.

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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