A Measurement of the Pomeron Trajectory based on Elastic Rho Photoproduction

Reference Preliminary DIS2009, April 2009
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Abstract Based on data collected with the H1 detector at HERA in 2005, cross sections for elastic rho photoproduction have been measured at momentum transfer |t| < 0.58 GeV^2 and photon-proton centre-of-mass energies 20 < W < 90GeV. This data has been combined with cross sections published previously by the Omega and ZEUS collaborations in a global fit to determine the pomeron trajectory alpha(t) in 13 bins of t from the W-dependence of the elastic rho production cross section.
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