Measurement of the cross section for diffractive deep-inelastic scattering with a leading proton at HERA
Aaron, Francise D.
- Journal Article
Rights / licenseCreative Commons Attribution 4.0 International
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 ℙ<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 ℙ,Q 2 and β=x/x ℙ, where x is the Bjorken scaling variable. The t and x ℙ 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 ℙ. Show more
Journal / seriesThe European Physical Journal C
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