arXiv:1307.0705·v1·High Energy Physics — Phenomenology
QCD corrections to H -> gg in FDR
Roberto Pittau (Granada U., Theor. Phys. Astrophys. and CAFPE, Granada)🇪🇸
Abstract
I apply FDR -- a recently introduced Four Dimensional Regularization approach to quantum field theories -- to compute the NLO QCD corrections to H -> gg in the large top mass limit. The calculation involves all key ingredients of massless QCD, namely ultraviolet, infrared and collinear divergences, besides alpha_s renormalization. I show in detail how the correct result emerges in FDR, and discuss the translation rules to dimensional regularization.
Comments: 15 pages, 2 figures