Limits on the production of direct protons in 200{ital A} GeV {sup 32}S+Au collisions

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physical Review Letters

OSTI ID:285667

A search for the production of direct photons in S+Au collisions at 200{ital A} GeV has been carried out in the CERN-WA80 experiment. For central collisions the measured photon excess at each {ital p}{sub {ital T}}, averaged over the range 0.5{le}{ital p}{sub {ital T}}{le}2.5 GeV/{ital c}, corresponded to 5.0{percent} of the total inclusive photon yield with a statistical error of {sigma}{sub stat}=0.8{percent} and a systematic error of {sigma}{sub syst}=5.8{percent}. Upper limits on the invariant yield for direct photon production at the 90{percent} C.L. are presented. Possible implications for the dynamics of high-energy heavy-ion collisions are discussed. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 285667
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ERRORS
GOLD 197 TARGET
HEAVY ION REACTIONS
PARTICLE PRODUCTION
PHOTONS
SULFUR 32 REACTIONS
TEV RANGE 01-10
TRANSVERSE MOMENTUM