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Diffractive pQCD mechanisms of exclusive production of b b dijets and W+ W- pairs in proton-proton collisions

2012/06/01 by Antoni Szczurek, Szczurek, Antoni
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1206.0276

invited talk at the DIS2012 workshop, Bonn, Germany, 26-30 March 2012

arxiv created 2012/06/01 · openalex publication_date 2012/06/01 · arxiv updated 2012/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss central exclusive production of W+W- pairs in proton-proton collisions at LHC. Predictions for the total cross section and differential distributions in transverse momentum of W± and WW invariant mass are presented. We discuss both γγ→ W+ W- mechanism as well as a new mechanism of exclusive diffractive production. The amplitude for the latter process is calculated in the Durham model. We compare the two (QED and QCD) types of contributions. The diffractive contribution is only a small fraction of fb compared to the γγ contribution which is of the order of 100 fb. This opens a possibility of searches for anomalous four-boson γγW+ W- coupling due to physics beyond Standard Model.

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