发表机构
Durham University; Indian Institute of Science; Università degli Studi di Milano-Bicocca and INFN Sezione di Milano-Bicocca; INFN, Laboratori Nazionali di Frascati; University of Valencia-CSIC; Hainan University(杜伦大学; 印度科学学院; 米兰比可卡大学与意大利国家核物理研究所米兰比可卡分部; 意大利国家核物理研究所,弗拉斯卡蒂国家实验室; 瓦伦西亚大学-西班牙高等科学研究理事会; 海南大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该研究总结了胶子融合产生希格斯玻色子对过程的高阶QCD与电弱修正,评估了相关理论不确定性,并给出了该过程截面及不变质量分布的最新前沿推荐值。
AI 中文摘要
在本研究中,我们总结了标准模型中通过胶子融合机制($gg\ o hh$)产生希格斯玻色子对过程的高阶量子色动力学(QCD)与电弱修正,并评估了不同来源的理论不确定性。讨论内容包括有限顶夸克质量效应、与部分子喷注的匹配、近似NNLO与N$^3$LO QCD修正、NLO电弱效应,以及与顶夸克质量方案和微扰标度选择相关的不确定性。此外,我们给出了 inclusive 胶子融合希格斯玻色子对产生截面及对应希格斯玻色子对不变质量分布的最新前沿推荐值。
英文摘要
In this contribution, the higher-order QCD and electroweak corrections to Standard Model Higgs boson pair production via the gluon-fusion mechanism, $gg\to hh$, are summarized and the different sources of theoretical uncertainty are assessed. The discussion includes finite top quark mass effects, matching to parton showers, approximate NNLO and N$^3$LO QCD corrections, NLO electroweak effects, and uncertainties associated with the top quark mass scheme and perturbative scale choices. In addition, we provide an updated state-of-the-art recommendation for the inclusive gluon-fusion Higgs boson pair production cross section and the corresponding Higgs boson pair invariant-mass distribution.
Comments68 pages, 36 figures, 13 tables. Contribution to CERN Report 5 approved by LHC Higgs Working Group, Working Group 4