Modeling of t-channel single top-quark production at the LHC

被引：6

作者：

Gao, Jun ^{[1
,2
]}

Berger, Edmond L. ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China

[2] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China

[3] Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA

来源：

PHYSICS LETTERS B | 2020年 / 811卷

基金：

中国国家自然科学基金;

关键词：

QCD CORRECTIONS;

D O I：

10.1016/j.physletb.2020.135886

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the modeling of t-channel single top-quark production at Large Hadron Collider (LHC) energies. We compare predictions at next-to-next-to-leading order in a 5-flavor scheme to those of next-to-leading order in a 4-flavor scheme, finding the two schemes agree within a few percent in general for the shape of kinematic distributions of the top quark. The predictions in the 5-flavor scheme show strong stability for both normalization and distributions, and are superior to those of the 4-flavor scheme at comparable orders. We present comparisons of the predictions with LHC data. Our findings provide clear theoretical guidance for precision studies of single top-quark physics at the LHC. (C) 2020 The Author(s). Published by Elsevier B.V.

引用

页数：5

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