Remarks on the Single-Photon Spectra from CERN-WA80
AI Xiao-bai (Ai Hsiao-bai)
Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800
Remarks on the Single-Photon Spectra from CERN-WA80
AI Xiao-bai (Ai Hsiao-bai)
Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
25.75.+r ,
12.38.Mh
Abstract ： In this letter the author points out that in recent WA80 data an apparent slope parameter of Texp ≈180 MeV/c must not mean the fireball becoming equilibrated in whole at some temperatures throughout the stages of the evolution. The author also demonstrates that Texp is merely a mean value of the temperatures of various high-energy photon sources, and predicts that for higher colliding energies (> 200 A GeV) the shape of the measured single-photon spectra would exhibit some concave curvature, which may be used as a probe for diagnosing quark-gluon plasma.
Key words ：
25.75.+r
12.38.Mh
出版日期: 1996-09-01
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[14]
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[15]
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1996, Vol. 13 
