论文标题

HADRONIC HIGGS衰减中的能量能量相关性:NLO的分析结果和现象学

Energy-energy correlation in hadronic Higgs decays: analytic results and phenomenology at NLO

论文作者

Gao, Jun, Shtabovenko, Vladyslav, Yang, Tong-Zhi

论文摘要

在这项工作中,我们完成了对固定顺序扰动理论中近代领先顺序(NLO)衰减中最近引入的能量能量相关性(EEC)函数的研究,该函数在消失的夸克质量的极限下进行了研究。 $ h \ to q \ bar {q} + x $通道中先前未知的EEC的完整分析NLO结果是根据经典的聚集体给出的,并针对数值计算进行了交叉检查。除此之外,我们还讨论了对Higgs EEC事件形状变量预测的进一步校正,包括夸克质量校正,Parton淋浴的影响和强调。我们还估计了未来HIGGS工厂中HIGGS EEC测量的统计误差,并与当前的扰动不确定性进行了比较。

In this work we complete the investigation of the recently introduced energy-energy correlation (EEC) function in hadronic Higgs decays at next-to-leading order (NLO) in fixed-order perturbation theory in the limit of vanishing light quark masses. The full analytic NLO result for the previously unknown EEC in the $H \to q \bar{q} + X$ channel is given in terms of classical polylogarithms and cross-checked against a numerical calculation. In addition to that, we discuss further corrections to predictions of the Higgs EEC event shape variable, including quark mass corrections, effects of parton shower and hadronization. We also estimate the statistical error on the measurements of the Higgs EEC at future Higgs factories and compare with the current perturbative uncertainty.

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