Interferometry of direct photons in central $^{208}$Pb+$^{208}$Pb collisions at 158A GeV

Two-particle correlations of direct photons were measured in central /sup 208208/Pb+Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100<K/sub T/<300 MeV/c and compared to radii extracted from charged pion correlations. The yield of soft direct photons, K/sub T...

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Detalles Bibliográficos
Autores principales: Aggarwal, M M, Ahammed, Z, Angelis, A L S, Antonenko, V G, Arefev, V, Astakhov, V A, Avdeichikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Bathe, S, Batyunya, B, Bernier, T, Bhalla, K B, Bhatia, V S, Blume, C, Bucher, D, Büsching, H, Carlén, L, Chattopadhyay, S, Decowski, M P, Delagrange, H, Dönni, P, Majumdar, M R D, Chenawi, K E, Dubey, A K, Enosawa, K, Fokin, S, Frolov, V, Ganti, M S, Garpman, S, Gavrishchuk, O P, Geurts, F J M, Ghosh, T K, Glasow, R, Guskov, B, Gustafsson, Hans Åke, Gutbrod, H H, Hrivnacova, I, Ippolitov, M S, Kalechofsky, H, Karadzhev, K, Karpio, K, Kolb, B W, Kosarev, I G, Kucheryaev, I, Kugler, A, Kulinich, P, Kurata, M, Lebedev, A, Löhner, H, Luquin, Lionel, Mahapatra, D P, Man'ko, V, Martin, M, Martínez, G, Maksimov, A, Miake, Y, Mishra, G C, Mohanty, B G, Mora, M J, Morrison, Douglas Robert Ogston, Moukhanova, T, Mukhopadhyay, D S, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Nyanin, A, Nikitin, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, V P, Nystrand, J, Oskarsson, A, Otterlund, I, Peitzmann, T, Peressounko, D Yu, Petracek, V, Phatak, S C, Pinganaud, W, Plasil, F, Purschke, M L, Rak, J, Raniwala, R, Raniwala, S, Rao, N K, Retière, F, Reygers, K, Roland, G, Rosselet, L, Rufanov, I A, Roy, C, Rubio, J M, Sambyal, S S, Santo, R, Sato, S, Schlagheck, H, Schmidt, H R, Schutz, Y, Shabratova, G, Shah, T H, Sibiryak, Yu, Siemiarczuk, T, Silvermyr, D, Sinha, B C, Slavin, N V, Söderström, K, Sood, G, Srensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Sumbera, M, Svensson, T, Tsvetkov, A A, Tykarski, L, Van den Pijll, E C, van Eijndhoven, N, van Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopyanov, A S, Vörös, S, Wyslouch, B, Young, G R
Lenguaje:eng
Publicado: 2004
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.93.022301
http://cds.cern.ch/record/816656
Descripción
Sumario:Two-particle correlations of direct photons were measured in central /sup 208208/Pb+Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100<K/sub T/<300 MeV/c and compared to radii extracted from charged pion correlations. The yield of soft direct photons, K/sub T/<300 MeV/c, was extracted from the correlation strength and compared to theoretical calculations. (13 refs).

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