论文标题

在LHC和FCC上为$ t $ channel单顶制作的$ T $ channel的不可分割的贡献

Non-factorisable contributions to $t$-channel single-top production at the LHC and FCC

论文作者

Brønnum-Hansen, Christian, Quarroz, Jérémie, Signorile-Signorile, Chiara, Wang, Chen-Yu

论文摘要

单顶夸克主要是通过$ t $ -Channel W Boson Exchange $ Q + B \ rightarrow Q' + T $在LHC上生产的。此过程可直接探测WTB顶点,可用于测量CKM矩阵元素$ v_ {tb} $或限制底部夸克PDF。不可分割的贡献是NNLO校正的最后一部分。在这些程序中,我们在第一部分中讨论了这种校正的表面上的重要性和获得不同相关幅度的情况。在第二部分中,将最近发布的LHC能量的结果与Proton-Proton碰撞的新结果进行了比较,$ 100 \:{\ rm TEV} $,FCC的能量。

Single top quark is mainly produced through the $t$-channel W boson exchange $q + b \rightarrow q' + t$ at LHC. This process probes Wtb vertex directly and can be used to measure the CKM matrix element $V_{tb}$ or to constrain the bottom quark PDF. The non-factorisable contributions are the last missing piece of the NNLO corrections. In these proceedings, we discuss in a first part the ostensible importance of such corrections and the obtention of the different relevant amplitudes. In the second part, recently published results at the energy of the LHC are compared to new results for proton-proton collision at $100 \: {\rm TeV}$, the energy of the FCC.

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