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arXiv 2101.04872hep-ph
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软夸克函数的解析性、重整化和演化

Analyticity, renormalization, and evolution of the soft-quark function

Geoffrey T. Bodwin, June-Haak Ee, Jungil Lee, Xiang-Peng Wang

摘要:

我们计算了Higgs玻色子通过$b$ -夸克环衰变为双光子的因式分解定理中软夸克函数的重整化和演化。我们的计算证实了Liu,Mecaj,Neubert,Wang和Fleming关于$α_s$阶软夸克函数的重整化和演化形式的猜想。我们还利用光锥微扰理论计算了软夸克函数的解析结构。

英文摘要:

We compute the renormalization and evolution of the soft-quark function that appears in the factorization theorem for Higgs-boson decays to two photons through a $b$-quark loop. Our computation confirms a conjecture by Liu, Mecaj, Neubert, Wang, and Fleming for the form of the renormalization and evolution of the soft-quark function in order $α_s$. We also work out the analyticity structure of the soft-quark function by making use of light-cone perturbation theory.

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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