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A hadron and string cascade model, JPCIAE, which is based on LUND stringmodel, PYTHIA event generator especially, is used to study both inclusivephoton production and direct photon production in 200A GeV S + Au centralcollisions. The model takes into account the photon production from thepartonic QCD scattering process, the hadronic final-state interaction, and thehadronic decay and deals with them consistently. The results of JPCIAE modelreproduce successfully both the WA93 data of low p_T inclusive photondistribution and the WA80 data of transverse momentum dependent upper limit ofdirect photon. The photon production from different decay channels isinvestigated for both direct and inclusive photons. We have discussed theeffects of the partonic QCD scattering and the hadronic final-state interactionon direct photon production as well.Comment: 6 pages with 5 figure

physical review. c. nuclear physics/physical review. c, nuclear physics

Inclusive and direct photons in S+Au collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>2</mml:mn><mml:mn>0</mml:mn><mml:mn>0</mml:mn><mml:mi>A</mml:mi></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">GeV</mml:mi><mml:mo>/</mml:mo><mml:mi>c</mml:mi></mml:math>

Inclusive and direct photons in S+Au collisions at200AGeV/c