CERN Accelerating science

Article
Report number CERN-PPE-95-186
Title Limits on the production of direct photons in 200 A GeV32S + Au collisions
Author(s) WA80 Collaboration  Pokaż wszystkich 62 autorów
Publication 1996
Imprint 13 Dec 1995
Number of pages 8
In: Phys. Rev. Lett. 76 (1996) 3506-3509
DOI 10.1103/PhysRevLett.76.3506
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; WA80
Abstract A search for the production of direct photons in S+Au collisions at 200\cdotA GeV has been carried out in the CERN-WA80 experiment. For central collisions the measured photon excess at each p_T, averaged over the range 0.5 GeV/c  \leq p_T \leq 2.5 GeV/c, corresponded to 5.0\% of the total inclusive photon yield with a statistical error of \sigma_{\rm stat}=0.8\% and a systematic error of \sigma_{\rm syst}=5.8\%. Upper limits on the invariant yield for direct photon production at the 90\% C.L. are presented. Possible implications for the dynamics of high-energy heavy-ion collisions are discussed.

Corresponding record in: Inspire


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