A Forward Branching Phase Space Generator for Hadron colliders

Abstract

In this paper we develop a projective phase space generator appropriate for hadron collider geometry. The generator integrates over bremsstrahlung events which project back to a single, fixed Born event. The projection is dictated by the experimental jet algorithm allowing for the forward branching phase space generator to integrate out the jet masses and initial state radiation. When integrating over the virtual and bremsstrahlung amplitudes this results in a single K-factor, assigning an event probability to each Born event. This K-factor is calculable as a perturbative expansion in the strong coupling constant. One can build observables from the Born kinematics, giving identical results to tradi- tional observables as long as the observable does not depend on the infrared sensitive jet mass or initial state radiation.

16 pages, 10 figures

References in corpus (7)

• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• The N-jettiness soft function at next-to-next-to-leading order
• N3LO Corrections to Jet Production in Deep Inelastic Scattering using the Projection-to-Born Method
• The NNLO QCD soft function for 1-jettiness
• The Matrix Element Method at next-to-leading order QCD for hadronic collisions: Single top-quark production at the LHC as an example application
• A Forward Branching Phase-Space Generator
• The Matrix Element Method at next-to-leading order QCD using the example of single top-quark production at the LHC

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• A Projective Phase Space Generator for Hadronic Vector Boson Plus One Jet Production
• Sudakov evolution without unitarity