Limits on the production of direct photons in 200A GeV S-32+Au collisions

被引：98

作者：

Albrecht, R

Antonenko, V

Awes, TC

Barlag, C

Berger, F

Bloomer, M

Blume, C

Bock, D

Bock, R

Bohne, EM

Bucher, D

Claesson, G

Claussen, A

Clewing, G

Debbe, R

Dragon, L

Dubovik, Y

Eklund, A

Fokin, S

Franz, A

Garpman, S

Glasow, R

Gustafsson, HA

Gutbrod, HH

Hansen, O

Holker, G

Idh, J

Ippolitov, M

Jacobs, P

Kampert, KH

Karadjev, K

Kolb, BW

Lebedev, A

Lohner, H

Lund, I

Manko, V

Moskowitz, B

Nikolaev, S

Nystrand, J

Obenshain, FE

Oskarsson, A

Otterlund, I

Peitzmann, T

Plasil, F

Poskanzer, AM

Purschke, M

Ritter, HG

Roters, B

Saini, S

Santo, R

机构：

[1] IV KURCHATOV ATOM ENERGY INST,MOSCOW 123182,RUSSIA

[2] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

[3] UNIV MUNSTER,D-48149 MUNSTER,GERMANY

[4] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[5] LUND UNIV,S-22362 LUND,SWEDEN

[6] BROOKHAVEN NATL LAB,UPTON,NY 11973

[7] UNIV TENNESSEE,KNOXVILLE,TN 37996

[8] UNIV GRONINGEN,KERNFYS VERSNELLER INST,NL-9747 AA GRONINGEN,NETHERLANDS

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.76.3506

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A search for the production of direct photons in S + An collisions at 200A GeV has been carried out in the CERN-WA80 experiment. For central collisions the measured photon excess at each pr, averaged over the range 0.5 less than or equal to p(T) less than or equal to less than or equal to 2.5 GeV/c, corresponded to 5.0% of the total inclusive photon yield with a statistical error of sigma(stat) = 0.8% and a systematic error of sigma(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.

引用

页码：3506 / 3509

页数：4

共 50 条

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