"Observation of direct photons in central 158 A GeV 208Pb+208Pb collisions." . . "Angelis, A. L. S." . "Vodopyanov, A." . "Petr\u00E1\u010Dek, Vojt\u011Bch" . . "Astakhov, V." . "Yokota, Y." . "Avdeichikov, V." . "N/A"@en . . "0"^^ . "Young, G. R." . "3595;3599" . . "0"^^ . "P(KSK1048601), Z(AV0Z1048901)" . "1"^^ . . "Pachr, Milo\u0161" . "Twenh\u00F6fel, C." . "0031-9007" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Rak, Jan" . "Observation of direct photons in central 158 A GeV 208Pb+208Pb collisions."@en . "[D9CCC208B561]" . "Kugler, Andrej" . "Observation of direct photons in central 158 A GeV 208Pb+208Pb collisions."@en . "\u0160umbera, Michal" . "RIV/61389005:_____/00:49000285!RIV/2003/AV0/A49003/N" . . . "7"^^ . "20"^^ . "A measurement of direct photon production in .sub.208 Pb+.sub.208 Pb collisions at 158 A GeV has been carried out in CERN WA98 experiment. The invariant yield of direct photonsin central collisions is extracted as a function of transverse momentum in the interval 0.5 .le. P.sup.T .le. 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p.sup.T .ge. 1.5 GeV/c. The result constitutes the first observation of direct photons inultrarelativistic heavy-ion collisions. It could be significant for diagnosis of quark-gluon-plasma formation."@en . "Viyogi, Y. P." . "Eliseev, Sergej" . "Observation of direct photons in central 158 A GeV 208Pb+208Pb collisions." . . . "Aggarwal, M. M." . "A measurement of direct photon production in .sub.208 Pb+.sub.208 Pb collisions at 158 A GeV has been carried out in CERN WA98 experiment. The invariant yield of direct photonsin central collisions is extracted as a function of transverse momentum in the interval 0.5 .le. P.sup.T .le. 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p.sup.T .ge. 1.5 GeV/c. The result constitutes the first observation of direct photons inultrarelativistic heavy-ion collisions. It could be significant for diagnosis of quark-gluon-plasma formation." . "N/A" . . "RIV/61389005:_____/00:49000285" . . "Svensson, M. D." . . "Trivedi, M. D." . "85" . . "Physical Review Letters" . . . "720060" . "Vinogradov, A." . . . . . . "Antonenko, V." . "H\u0159ivn\u00E1\u010Dov\u00E1, Ivana" . .