Abstract
The modeling of high energy photons production in collisions of antiproton beam having E beam = 15 GeV with the proton target pp→ γ + {ptX} is done using the event sample simulated by PYTHIA6 generator. Such energy is high enough to consider this collision as a relativistic one and being caused by parton-parton scattering. The distribution of the set of kinematic variables and cuts which can be useful for getting the information about proton structure in the available kinematic region is obtained. The contributions of fake photons which can appear from the hadron decays as well as of the background caused by the minimum bias events and other QCD processes are estimated. The set of cuts which can be useful for separation of signal events containing the direct photons from background events is proposed.
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Skachkova, A.N., Skachkov, N.B. Perspetives of study the direct photon production process at FAIR energy. Phys. Part. Nuclei Lett. 12, 763–772 (2015). https://doi.org/10.1134/S1547477115060084
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DOI: https://doi.org/10.1134/S1547477115060084