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arXiv 2102.03246hep-ph
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在LHC对外壳外$\text{t}\overline{\text{t}}\text{W}$生产进行NLO EW和QCD组合校正

Combined NLO EW and QCD corrections to off-shell $\text{t}\overline{\text{t}}\text{W}$ production at the LHC

Ansgar Denner, Giovanni Pelliccioli

摘要:

大型强子对撞机将积累的高亮度将使精确的微分测量与$\text{W}$玻色子相关的顶-反顶夸克对的强子产生成为可能。因此,这一过程的准确描述是需要现实的最终状态。在这项工作中,我们结合了第一次的非线性光学QCD和电弱修正的完整的离壳层$\text{t}\overline{\text{t}}{\text{W}}^+$生产在LHC的三电荷轻子通道,包括所有的自旋相关,非共振效应,和干扰。为此,我们计算了非线性光学对QCD前导阶的电弱辐射修正以及对QCD和电弱前导阶的非线性光学QCD修正。

英文摘要:

The high luminosity that will be accumulated at the LHC will enable precise differential measurements of the hadronic production of a top--antitop-quark pair in association with a $\text{W}$ boson. Therefore, an accurate description of this process is needed for realistic final states. In this work we combine for the first time the NLO QCD and electroweak corrections to the full off-shell $\text{t}\overline{\text{t}}{\text{W}}^+$ production at the LHC in the three-charged-lepton channel, including all spin correlations, non-resonant effects, and interferences. To this end, we have computed the NLO electroweak radiative corrections to the leading QCD order as well as the NLO QCD corrections to both the QCD and the electroweak leading orders.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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