Measurement of the energy dependence of the total photon-proton cross section at HERA

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Abstract

The energy dependence of the photon-proton total cross section, ωγptot, was determined from e+p scattering data collected with the ZEUS detector at HERA at three values of the center-of-mass energy, W, of the γp system in the range 194 < W < 296 GeV This is the first determination of the W dependence of ωγptot from a single experiment at high W. Parameterizing ωγptot αW, σ = 0.111 ± 0.009 (stat.)± 0.036 (syst.) was obtained.

Original languageEnglish
JournalProceedings of Science
Volume2011-July
StatePublished - 2011
Event21st International Europhysics Conference on High Energy Physics, EPS-HEP 2011 - Grenoble, RhoneAlpes, France
Duration: 21 Jul 201127 Jul 2011

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