弱玻色子融合产生希格斯玻色子及其衰变到底夸克过程中的部分子簇射与固定阶QCD效应
Parton-shower and fixed-order QCD effects in Higgs boson production in weak-boson fusion and its decays to bottom quarks
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中文总结 AI 辅助
研究弱玻色子融合产生希格斯玻色子并衰变到底夸克对过程中高阶QCD修正的影响，发现固定阶计算修正大，改用部分子簇射匹配描述可捕获大部分修正并改善收敛性。
中文摘要 AI 辅助
我们研究了高阶QCD修正对通过弱玻色子融合产生希格斯玻色子并随后衰变到底夸克对过程的影响。我们考虑了现实的 fiducial 截断，并观察到固定阶计算中存在大的修正。这些修正源于所考虑的特定 fiducial 截断与希格斯衰变子过程辐射修正之间的相互作用。改用部分子簇射匹配的衰变描述，即使在最低阶也能捕获修正的很大一部分，并改善了计算的微扰收敛性。
英文摘要
We study the impact of higher-order QCD corrections on Higgs production via weak-boson fusion with subsequent decays of the Higgs boson to bottom-quark pairs. We consider realistic fiducial cuts and observe large corrections in a fixed-order calculation. They arise from the interplay of the particular fiducial cuts considered and the radiative corrections to the Higgs decay subprocess. Switching to a parton-shower-matched description of the decay captures a significant portion of the corrections already at the lowest order and improves the perturbative convergence of the calculation.
