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Updated: Oct 28, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Two-Loop QCD Corrections to Wbb[over ¯] Production at Hadron Colliders
Simon Badger1, Heribertus Bayu Hartanto2, Simone Zoia1
1Dipartimento di Fisica and Arnold-Regge Center, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino, Italy.
Abstract:
We present an analytic computation of the two-loop QCD corrections to ud[over ¯]→W^{+}bb[over ¯] for an on-shell W boson using the leading color and massless bottom quark approximations. We perform an integration-by-parts reduction of the unpolarized 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.
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