Cross-sections and Some Features of Charm Photoproduction at $\gamma$ Energies of 20-{GeV} to 70-{GeV}

The Photon Emulsion collaboration Adamovich, M.I. ; Aleksandrov, Yu.A. ; Bolta, J.M. ; et al.
Phys.Lett.B 187 (1987) 437-441, 1987.
Inspire Record 230940 DOI 10.17182/hepdata.30199

We report some results on charm photoproduction at γ energies ranging from 20 to 70 GeV. 36 events with pairs of charmed particles have been found in emulsions. The computed total cross section is (230±57)nb/nucleon. Frequencies of different production channels and some distributions are presented and compared with the predictions from a photon-gluon fusion model with string fragmentation.

1 data table

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