High energy Pb + Pb collisions as seen by the NA44 experiment

NA44 is a focusing spectrometer at the CERN SPS that measures single- particle inclusive spectra and two-particle correlations near mid- rapidity. Recent data taken using a 158 GeV/nucleon Pb beam incident on a Pb target will be presented. These data will be compared to data taken using other projec...

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Detalles Bibliográficos
Autores principales: Hardtke, D, Bearden, I G, Bøggild, H, Boissevain, J G, Dodd, J, Erazmus, B, Esumi, S C, Fabjan, Christian Wolfgang, Ferenc, D, Fields, D E, Franz, A, Gaardhøje, J J, Hamelin, M, Hansen, A G, Hansen, O, van Hecke, H, Holzer, E B, Humanic, T J, Hummel, P, Jacak, B V, Jayanti, R, Kaimi, K, Kanata, M, Kohama, T, Kopytine, M L, Leltchouk, M, Ljubicic, A, Lörstad, B, Maeda, N, Malina, R, Medvedev, A, Murray, M, Ohnishi, H, Paic, G, Pandey, S U, Piuz, François, Pluta, J, Polychronakos, V, Potekhin, M V, Poulard, G, Reichhold, D M, Sakaguchi, A, Simon-Gillo, J, Schmidt-Sørensen, J, Sondheim, W E, Spegel, M, Sugitate, T, Sullivan, J P, Sumi, Y, Willis, W J, Wolf, K L, Xu, N, Zachary, D S
Lenguaje:eng
Publicado: 1999
Materias:
Nuclear Physics
Acceso en línea:http://cds.cern.ch/record/506677
Descripción
Sumario:NA44 is a focusing spectrometer at the CERN SPS that measures single- particle inclusive spectra and two-particle correlations near mid- rapidity. Recent data taken using a 158 GeV/nucleon Pb beam incident on a Pb target will be presented. These data will be compared to data taken using other projectile-target combinations. The data show that the emission volume in Pb+Pb collisions is larger than in lighter projectile-target systems, that a large degree of collective radial flow is created in these collisions, and that different particle species probe different regions of the freeze-out volume. (22 refs).

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