高不变质量区drel - yan过程的混合qcd -电弱修正

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2022) Pub Date : 2022-10-20 DOI:10.22323/1.416.0069

C. Signorile-Signorile

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引用次数: 0

摘要

我们报道了在高不变质量区域中，对中性电流介导的一对无质量轻子产生的混合qcd -电弱修正的计算。我们发现这些修正在相对较低的双轻子不变质量值(约200gev)时为0(- 1%)。对于大于1 TeV的不变质量，我们观察到混合校正更大，为O(- 3%)，并且由次领先阶QCD和电弱校正的乘积可以很好地再现。这些结果强调了混合qcd -电弱校正在Drell-Yan工艺研究中的重要性，其中百分比级别的精度是目标。

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Mixed QCD-Electroweak corrections to the Drell-Yan process in the high invariant mass region

We report on the calculation of mixed QCD-electroweak corrections to the neutral-current-mediated production of a pair of massless leptons in the high invariant mass region. We ﬁnd these corrections to be O(− 1% ) at relatively low values of the dilepton invariant mass, around 200 GeV. For invariant masses larger than 1 TeV, we observe that mixed corrections are larger, O(− 3% ) , and are well reproduced by the product of next-to-leading order QCD and electroweak corrections. These results emphasise the importance of mixed QCD-electroweak corrections in Drell-Yan process studies, where percent-level precision is being targeted.

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Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2022)

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