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Soft-gluon effective coupling: perturbative results and the large-nF limit to all orders
Stefano Catani, Daniel de Florian, Simone Devoto +2
We consider extensions of the soft-gluon effective coupling that generalize the Catani--Marchesini--Webber (CMW) coupling in the context of soft-gluon resummation beyond the next-t…
Soft-parton contributions to heavy-quark production at low transverse momentum
Stefano Catani, Simone Devoto, Massimiliano Grazzini +1
We consider QCD radiative corrections to the production of a heavy-quark pair in hadronic collisions. We present the computation of the soft-parton contributions at low transverse…
Soft gluon-quark-antiquark emission in QCD hard scattering
Stefano Catani, Leandro Cieri, Dimitri Colferai +1
We consider the radiation of a soft gluon () and a soft quark-antiquark () pair in QCD hard scattering. In the soft limit the scattering amplitude has a singular beha…
Higgs boson production in association with a top-antitop quark pair in next-to-next-to leading order QCD
Stefano Catani, Simone Devoto, Massimiliano Grazzini +3
The associated production of a Higgs boson with a top-antitop quark pair is a crucial process at the LHC since it allows for a direct measurement of the top-quark Yukawa coupling.…
Collinear functions for QCD resummations
Stefano Catani, Prasanna K. Dhani
The singular behaviour of QCD squared amplitudes in the collinear limit is factorized and controlled by splitting kernels with a process-independent structure. We use these kernels…
Triple (and quadruple) soft-gluon radiation in QCD hard scattering
Dimitri Colferai
We consider the radiation of three soft gluons in a generic process for multiparton hard scattering in QCD. In the soft limit the corresponding scattering amplitude has a singular…