Measurement of Diffractive Scattering of Photons with Large Momentum Transfer at HERA

The first measurement of diffractive scattering of quasi-real photons with large momentum transfer γp→γY , where Y is the proton dissociative system, is made using the H1 detector at HERA. The measurement is performed for initial photon virtualities Q2<0.01 GeV2 . Single differential cross sections are measured as a function of W , the incident photon–proton centre of mass energy, and t , the square of the four-momentum transferred at the proton vertex, in the range 175

Note:

17 pages, accepted by PLB, revised version

electron p: colliding beams
photon p: interaction
diffraction
p: dissociation
differential cross section: energy dependence
momentum transfer dependence
quantum chromodynamics: perturbation theory
BFKL equation
H1
DESY HERA Stor

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