S. Aid et al., MEASUREMENT OF THE TOTAL PHOTON PROTON CROSS-SECTION AND ITS DECOMPOSITION AT 200 GEV CENTER-OF-MASS ENERGY, Zeitschrift fur Physik. C, Particles and fields, 69(1), 1995, pp. 27-38
We present a new measurement of the total photoproduction cross sectio
n performed with the H1 detector at HERA. For an average centre of mas
s energy of 200 GeV a value of sigma(tot)(gamma p) - 165 +/- 2 +/- 11
mu b has been obtained. A detailed analysis of the data in adequate ki
nematic regions enabled a decomposition of the total cross section in
its elastic, single diffractive dissociation and remaining non-diffrac
tive parts, based on safe assumptions on the double diffractive dissoc
iation contribution.