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arXiv 2202.04660hep-phhep-th
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四圈QCD中的夸克和胶子形状因子

Quark and gluon form factors in four-loop QCD

Roman N. Lee, Andreas von Manteuffel, Robert M. Schabinger, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser

摘要:

在无质量微扰量子色动力学中,我们计算了四圈阶的光子夸克和希格斯胶子形状因子。我们的研究结果构成了现成的积木N ${}^4$ LO截面的Drell-Yan过程和胶子融合希格斯玻色子生产在LHC。我们提出了完整的解析表达式的形状因子,并显示了几个最复杂的主积分。

英文摘要:

We compute the photon-quark and Higgs-gluon form factors to four-loop order within massless perturbative Quantum Chromodynamics. Our results constitute ready-to-use building blocks for N${}^4$LO cross sections for Drell-Yan processes and gluon-fusion Higgs boson production at the LHC. We present complete analytic expressions for both form factors and show several of the most complicated master integrals.

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