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Direct Photon Production in 158 AGeV Pb+Pb Collisions

A measurement of direct photon production in Pb+Pb collisions at 158 AGeV 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 0.5 < pT < 4 GeV/c. A significant direct pho...

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Detalles Bibliográficos
Autor principal: Peitzmann, T.
Lenguaje:eng
Publicado: 2001
Materias:
Acceso en línea:http://cds.cern.ch/record/460776
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author Peitzmann, T.
author_facet Peitzmann, T.
author_sort Peitzmann, T.
collection CERN
description A measurement of direct photon production in Pb+Pb collisions at 158 AGeV 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 0.5 < pT < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at pT > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation.
id cern-460776
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-4607762023-03-14T17:59:33Zhttp://cds.cern.ch/record/460776engPeitzmann, T.Direct Photon Production in 158 AGeV Pb+Pb CollisionsNuclear Physics - Experimentnucl-exA measurement of direct photon production in Pb+Pb collisions at 158 AGeV 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 0.5 < pT < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at pT > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation.nucl-ex/0009013oai:cds.cern.ch:4607762001
spellingShingle Nuclear Physics - Experiment
nucl-ex
Peitzmann, T.
Direct Photon Production in 158 AGeV Pb+Pb Collisions
title Direct Photon Production in 158 AGeV Pb+Pb Collisions
title_full Direct Photon Production in 158 AGeV Pb+Pb Collisions
title_fullStr Direct Photon Production in 158 AGeV Pb+Pb Collisions
title_full_unstemmed Direct Photon Production in 158 AGeV Pb+Pb Collisions
title_short Direct Photon Production in 158 AGeV Pb+Pb Collisions
title_sort direct photon production in 158 agev pb+pb collisions
topic Nuclear Physics - Experiment
nucl-ex
url http://cds.cern.ch/record/460776
work_keys_str_mv AT peitzmannt directphotonproductionin158agevpbpbcollisions