Factorisation of gg->h via light quarks in SCET

by Marvin Schnubel

Tuesday 28 May 2024, 12:00 → 13:00 Europe/Zurich

4/2-037 - TH meeting room (CERN)

We derive a factorization theorem for the Higgs-boson
production amplitude in gluon-gluon fusion induced by a light-quark
loop, working at next-to-leading power in soft-collinear effective
theory. In detail, we show how the refactorization-based subtraction
scheme developed in previous works leads to a factorization theorem free
of endpoint divergences. Renormalization-group techniques are used to
predict the logarithmically enhanced terms in the three-loop gg->h form
factor. We also resum the first three towers of leading logarithms
(corresponding NLL' resummation) to all orders of perturbation theory.