NLO QCD analysis of single-diffractive dijet production at the Tevatron
M. Klasen (LPSC Grenoble)
TL;DR
This paper performs the first NLO QCD analysis of single-diffractive dijet production at the Tevatron, comparing theoretical predictions with data to determine the rapidity-gap survival probability and its dependence on parton momentum fractions.
Contribution
It introduces the first NLO QCD analysis of single-diffractive dijet production in proton-antiproton collisions, providing insights into the suppression factor and its dependence on parton momentum fractions.
Findings
The rapidity-gap survival probability varies with the parton momentum fraction.
The suppression factor differs from that observed in photoproduction.
NLO analysis reveals a dependence of suppression on the parton momentum fraction in the Pomeron.
Abstract
We present the first NLO QCD analysis of single-diffractive dijet production in proton-antiproton collisions. By comparing the ratio of single- and non-diffractive cross sections to data from the Tevatron, the rapidity-gap survival probability is determined as a function of the momentum fraction of the parton in the antiproton. Assuming Regge factorization, this probability can be interpreted as a suppression factor for the diffractive structure function measured in deep-inelastic scattering at HERA. In contrast to the observations for photoproduction, the suppression factor in proton-antiproton collisions depends on the momentum fraction of the parton in the Pomeron even at NLO.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions