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Observation of Direct Photons in Central 158A GeV...

Journal article

Observation of Direct Photons in Central 158A GeV P208b+P208b Collisions

Abstract

A measurement of direct photon production in 208Pb+208Pb collisions at 158A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.51.5 GeV/c. The result constitutes the first observation of direct photons in ultrarelativistic heavy-ion collisions. It could be significant for diagnosis of quark-gluon-plasma formation.

Authors

Aggarwal MM; Agnihotri A; Ahammed Z; Angelis ALS; Antonenko V; Arefiev V; Astakhov V; Avdeitchikov V; Awes TC; Baba PVKS

Journal

Physical Review Letters, Vol. 85, No. 17, pp. 3595–3599

Publisher

American Physical Society (APS)

Publication Date

October 23, 2000

DOI

10.1103/physrevlett.85.3595

ISSN

0031-9007

Associated Experts

Adriaan Buijs

Professor, Faculty of Engineering

Labels

Fields of Research (FoR)

5106 Nuclear and Plasma Physics 5107 Particle and High Energy Physics 51 Physical sciences 40 Engineering 49 Mathematical sciences

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