Non-factorisable contribution to t-channel single-top production

被引：5

作者：

Bronnum-Hansen, Christian ^{[1
]}

Melnikov, Kirill ^{[1
]}

Quarroz, Jeremie ^{[1
]}

Signorile-Signorile, Chiara ^{[1
,2
]}

Wang, Chen-Yu ^{[1
]}

机构：

[1] KIT, Inst Theoret Particle Phys, Wolfgang Gaede Str 1, Karlsruhe, Germany

[2] KIT, Inst Astroparticle Phys, Hermann von Helmholtz Pl 1, Karlsruhe, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2022年 / 2022卷 / 06期

关键词：

Higher-Order Perturbative Calculations; Top Quark; Scattering Amplitudes; QCD CORRECTIONS; PAIR PRODUCTION; CROSS-SECTION; QUARK; AMPLITUDES;

D O I：

10.1007/JHEP06(2022)061

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 compute the non-factorisable O(alpha(2)(s)) corrections to t-channel single-top quark production at the LHC. These peculiar corrections arise because of interactions between the heavy- and the light-quark lines and appear for the very first time at next-tonext-to-leading order in perturbative QCD. We find that the non-factorisable corrections change the single-top production cross section and the relevant kinematic distributions in this process by about half a percent.

引用

页数：29

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