Calculates decoherence from radiation on a Bell-state fermion pair by mapping integrated Altarelli-Parisi splitting functions to Kraus operators of an open quantum system.
Parton showers with quantum interference
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abstract
We specify recursive equations that could be used to generate a lowest order parton shower for hard scattering in hadron-hadron collisions. The formalism is based on the factorization soft and collinear interactions from relatively harder interactions in QCD amplitudes. It incorporates quantum interference between different amplitudes in those cases in which the interference diagrams have leading soft or collinear singularities. It incorporates the color and spin information carried by partons emerging from a hard interaction. One motivation for this work is to have a method that can naturally cooperate with next-to-leading order calculations.
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MadGraph5_aMC@NLO automates tree-level, NLO, shower-matched, and merged cross-section computations for collider processes in a unified flexible framework.
The POWHEG method provides a general framework to interface NLO QCD computations with parton showers using Catani-Seymour and Frixione-Kunszt-Signer subtraction schemes, illustrated with e+e- hadron production and Drell-Yan processes.
citing papers explorer
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Decoherence effects in entangled fermion pairs at colliders
Calculates decoherence from radiation on a Bell-state fermion pair by mapping integrated Altarelli-Parisi splitting functions to Kraus operators of an open quantum system.
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The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
MadGraph5_aMC@NLO automates tree-level, NLO, shower-matched, and merged cross-section computations for collider processes in a unified flexible framework.
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Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
The POWHEG method provides a general framework to interface NLO QCD computations with parton showers using Catani-Seymour and Frixione-Kunszt-Signer subtraction schemes, illustrated with e+e- hadron production and Drell-Yan processes.