QCD corrections in tqγ production at hadron colliders

被引：0
|
作者：
Kidonakis, Nikolaos [1 ]
Yamanaka, Nodoka [2 ,3 ]
机构：
[1] Kennesaw State Univ, Dept Phys, Kennesaw, GA 30144 USA
[2] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Chikusa Ku, Furocho, Nagoya, Aichi 4648602, Japan
[3] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan
来源：
EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 08期
基金：
美国国家科学基金会;
关键词：
MOMENT;
D O I：
10.1140/epjc/s10052-022-10643-z
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We study QCD corrections for the associated production of a single top quark and a photon (tq gamma production) at hadron colliders. We calculate the NLO cross section at LHC and future collider energies for a variety of kinematical cuts, and we estimate uncertainties from scale dependence and from parton distributions. We also calculate differential distributions in top-quark transverse-momentum and rapidity as well as photon energy. Finally, we study higher-order corrections from soft-gluon emission for this process, and we provide approximate NNLO (aNNLO) results for the cross section and top-quark differential distributions. We also compare our calculations with recent measurements from CMS and ATLAS at the LHC and find that the aNNLO corrections improve the comparison between the data and the Standard Model predictions.
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页数：12
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