Total Photoproduction Cross Section Measurement at HERA Energies
1993
Abstract We
present firstresults on the total photoproduction cross section measurement with the H1 detector at
HERA. The data were extracted from low Q 2 collisions of 26.7 GeV electrons with 820 GeV protons. The γp total cross section has been measured by two independent methods in the γp
centerof
massenergy range from 90 to 290 GeV. For an average
centerof
massenergy of 195 GeV a value of σ tot ( γp ) = 159 ± 7 (stat.) ± 20 (syst.) μb was obtained.
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