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Survival probability for diffractive dijet production in p-pbar collisions from next-to-leading order calculations

Abstract : We perform next-to-leading order calculations of the single-diffractive and non-diffractive cross sections for dijet production in proton-antiproton collisions at the Tevatron. By comparing their ratio to the data published by the CDF collaboration for two different center-of-mass energies, we deduce the rapidity-gap survival probability 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 next-to-leading order.
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http://hal.in2p3.fr/in2p3-00410337
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, August 20, 2009 - 8:06:32 AM
Last modification on : Monday, July 20, 2020 - 9:18:18 AM

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M. Klasen, G. Kramer. Survival probability for diffractive dijet production in p-pbar collisions from next-to-leading order calculations. Physical Review D, American Physical Society, 2009, 80, pp.074006. ⟨10.1103/PhysRevD.80.074006⟩. ⟨in2p3-00410337⟩

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