SCET Workshop 2022

Resummmation Beyond Next-to-leading Logarithms at Subleading Power in h→γγ Decay

21 Apr 2022, 12:00

20m

Room 220, Hauptgebäude (University of Bern)

NLP

Speaker

Xing Wang

Description

Based on our previous series of work, we present the full resummation at RG-improved leading order for $h\to \gamma \gamma$ decay amplitudes induced by light quarks. We analytically show that endpoint divergences cancel in the plus-type subtraction scheme after scale evolution and use a slicing method to do the numerical evaluation. We find logarithms beyond NLL are significant.

Presentation materials

SCET2022.pdf