Analyticity, renormalization, and evolution of the soft-quark function
High Energy Physics - Phenomenology
2021-07-21 v3
Abstract
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 -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 . We also work out the analyticity structure of the soft-quark function by making use of light-cone perturbation theory.
Cite
@article{arxiv.2101.04872,
title = {Analyticity, renormalization, and evolution of the soft-quark function},
author = {Geoffrey T. Bodwin and June-Haak Ee and Jungil Lee and Xiang-Peng Wang},
journal= {arXiv preprint arXiv:2101.04872},
year = {2021}
}
Comments
40 pages, 12 figures, as usual plus additional diagrams calculated, typos corrected, text improved, references added