Title
Measurement of the cross section for diffractive deep-inelastic scattering with a leading proton at HERA Measurement of the cross section for diffractive deep-inelastic scattering with a leading proton at HERA
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : C : particles and fields. - Berlin
Volume/pages
71(2011) :3 , p. 1578,1-1578,36
ISSN
1434-6044
ISI
000287850600001
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The cross section for the diffractive deep-inelastic scattering process ep→eXp is measured, with the leading final state proton detected in the H1 Forward Proton Spectrometer. The data sample covers the range x &#8473;<0.1 in fractional proton longitudinal momentum loss, 0.1<|t|<0.7 GeV2 in squared four-momentum transfer at the proton vertex and 4<Q 2<700 GeV2 in photon virtuality. The cross section is measured four-fold differentially in t,x &#8473;,Q 2 and β=x/x &#8473;, where x is the Bjorken scaling variable. The t and x &#8473; dependences are interpreted in terms of an effective pomeron trajectory and a sub-leading exchange. The data are compared with perturbative QCD predictions at next-to-leading order based on diffractive parton distribution functions previously extracted from complementary measurements of inclusive diffractive deep-inelastic scattering. The ratio of the diffractive to the inclusive ep cross section is studied as a function of Q 2,β and x &#8473;.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/f2e8b8/c7106221.pdf
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