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Measurement of the energy dependence of the total photon–proton cross section at HERA
Journal article   Open access   Peer reviewed

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

H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, V. Aushev, …
Physics letters. B, Vol.697(3), pp.184-193
03/07/2011
DOI: 10.1016/j.physletb.2011.01.051
url
https://doi.org/10.1016/j.physletb.2011.01.051View
Published (Version of record) Open Access

Abstract

The energy dependence of the photon–proton total cross section, σtotγp, 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 σtotγp from a single experiment at high W. Parameterizing σtotγp∝W2ϵ, ϵ=0.111±0.009(stat.)±0.036(syst.) was obtained.
Energy dependence Photoproduction Total cross section

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