Two-loop QCD corrections to $Wb\bar{b}$ production at hadron colliders
High Energy Physics - Phenomenology
2021-10-14 v4 High Energy Physics - Theory
Abstract
We present an analytic computation of the two-loop QCD corrections to for an on-shell -boson using the leading colour and massless bottom quark approximations. We perform an integration-by-parts reduction of the unpolarised squared matrix element using finite field reconstruction techniques and identify an independent basis of special functions that allows an analytic subtraction of the infrared and ultraviolet poles. This basis is valid for all planar topologies for five-particle scattering with an off-shell leg.
Keywords
Cite
@article{arxiv.2102.02516,
title = {Two-loop QCD corrections to $Wb\bar{b}$ production at hadron colliders},
author = {Simon Badger and Heribertus Bayu Hartanto and Simone Zoia},
journal= {arXiv preprint arXiv:2102.02516},
year = {2021}
}
Comments
7 pages, 3 figures, 1 table. v2 references added. v3 correction to the parity odd contribution. v4 fix normalisation of parity odd contribution