On non-factorisable contributions to t-channel single-top production

被引：6

作者：

Bronnum-Hansen, Christian ^{[1
]}

Melnikov, Kirill ^{[1
]}

Quarroz, Jeremie ^{[1
]}

Wang, Chen-Yu ^{[1
]}

机构：

[1] KIT, Inst Theoret Particle Phys, Wolfgang Gaede Str 1, DE-76131 Karlsruhe, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 2021卷 / 11期

关键词：

Perturbative QCD; Scattering Amplitudes; 2-LOOP; INTEGRALS; DIAGRAMS; QUARK;

D O I：

10.1007/JHEP11(2021)130

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 contribution to the two-loop helicity amplitude for t-channel single-top production, the last missing piece of the two-loop virtual corrections to this process. Our calculation employs analytic reduction to master integrals and the auxiliary mass flow method for their fast numerical evaluation. We study the impact of these corrections on basic observables that are measured experimentally in the single-top production process.

引用

页数：24

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