Electroweak vector boson production at the LHC as a probe of mechanisms of diffraction

Abstract

We show that the double diffractive electroweak vector boson production in the $pp$ collisions at the LHC is an ideal probe of QCD based mechanisms of diffraction. Assuming the resolved Pomeron model with flavor symmetric parton distributions, the $W$ production asymmetry in rapidity equals exactly zero. In other approaches, like the soft color interaction model, in which soft gluon exchanges are responsible for diffraction, the asymmetry is non-zero and equal to that in the inclusive $W$ production. In the same way, the ratio of the $W$ to $Z$ boson production is independent of rapidity in the models with resolved Pomeron in contrast to the predictions of the soft color interaction model.

9 pages, 6 figures (submitted to Phys. Rev. D)

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Cited by in corpus (5)

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• Diffractive W production at hadron colliders as a test of colour singlet exchange mechanisms
• Testing Pomeron flavour symmetry with diffractive W charge asymmetry
• Diffractive gauge boson production at the LHC as a probe of the flavour content of the Pomeron
• Diffractive Physics at the LHC