22-29 July 2015
Europe/Vienna timezone

Fully differential decay rate of a standard model Higgs boson into a b-quark pair at NNLO accuracy

Jul 24, 2015, 3:15 PM
15m
HS32

HS32

talk QCD and Hadronic Physics QCD and Hadronic Physics

Speaker

Zoltan Laszlo Trocsanyi (University of Debrecen (HU))

Description

We compute the fully differential decay rate of the standard model Higgs boson to a b-quark pair at NNLO accuracy. We use a general subtraction scheme developed for computing QCD jet cross sections in perturbation theory. The double real and real-virtual contributions to the second order radiative corrections, regularized by subtractions, are finite in four space-time dimensions and their contribution to the decay rate can be computed with any jet function defined in four dimensions. We also demonstrate the finiteness of the regularized double virtual correction analytically. We present the differential decay rate into b-jets as a function of the jet resolution parameter for the JADE and Durham clustering algorithms.

additional information

based on arXiv:1501.07226 (published in JHEP 1504 (2015) 036)

Primary author

Zoltan Laszlo Trocsanyi (University of Debrecen (HU))

Co-authors

Claude Duhr (CERN) Francesco Tramontano (Universita e INFN, Napoli (IT)) Gabor Somogyi (University of Debrecen (HU)) Vittorio Del Duca (Universita e INFN Torino (IT))

Presentation materials