Two-loop amplitude for mixed QCD-EW corrections to gg → Hg

Journal of High Energy Physics

Matteo Becchetti¹  Francesco Moriello²  Armin Schweitzer² 

[1] Dipartimento di Fisica, Università di Torino and INFN Sezione di Torino;Institut für Theoretische Physik, ETH Zürich;

关键词: NLO Computations;   

DOI  :  10.1007/JHEP04(2022)139

来源: DOAJ

【 摘 要 】

Abstract We report on the two-loop amplitude computation for the mixed QCD-electroweak corrections to the process gg → Hg, with exact dependence on the electroweak boson masses. This amplitude has been employed in the computation of next-to-leading order (NLO) mixed QCD-electroweak corrections to the Higgs-boson production rate in [47]. The master integrals that appear in the amplitude are evaluated by means of generalized power series expansions, which allows for fast and high-precision numerical evaluation of the amplitude in the physical phase-space, proving to be a powerful tool for phenomenological applications.

【 授权许可】

Unknown