论文标题
重新定义了Hadronic Higgs玻色子衰变的预测
Resummed predictions for hadronic Higgs boson decays
论文作者
论文摘要
我们将标准型号玻色子腐烂的NNLL $'$重新定位$ 2 $ - 杰特分布分布到$ b \ bar {b} $ - 夸克对和gluons。该计算利用了使用软共线有效理论得出的分解公式，其中$ 2 $ jettiness的大量对数被重摩术组的进化重新点燃，对差速器衰减率的硬，软和喷射贡献的进化。我们使用Geneva框架将重新定义的预测与固定排正常的结果匹配，从而将结果的有效性扩展到了分辨率变量的所有值，并提供了与Pythia8 Parton淋浴相匹配的完全独特的NNLO事件发生器。
We present the NNLL$'$ resummed $2$-jettiness distribution for decays of the Standard Model Higgs boson to a $b\bar{b}$-quark pair and to gluons. The calculation exploits a factorisation formula derived using Soft-Collinear Effective Theory, in which large logarithms of the $2$-jettiness are resummed by renormalisation group evolution of the hard, soft and jet contributions to the differential decay rate. We match the resummed predictions to the fixed-order NNLO result using the GENEVA framework, extending the validity of the results to all values of the resolution variable and providing a fully exclusive NNLO event generator matched to the PYTHIA8 parton shower.
