1. Freeze-out parameters in central 158A (GeVPb)-Pb-208+Pbcollisions
- Author
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Aggarwal, M M, Agnihotri, A, Ahammed, Z, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Baldine, A, Barabach, L, Barlag, C, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, V S, Blume, C, Bock, R, Bohne, E M, Borocz, Z K, Bucher, D, Buijs, A, Busching, H, Carlen, L, Chalyshev, V, Chattopadhyay, S, Cherbatchev, R, Chujo, T, Claussen, A, Das, A C, Decowski, M P, Delagrange, H, Djordjadze, V, Donni, P, Doubovik, I, Dutt, S, Majumdar, M R D, El Chenawi, K, Eliseev, S, Enosawa, K, Foka, P, Fokin, S, Frolov, V, Ganti, M S, Garpman, S, Gavrishchuk, O, Geurts, F J M, Ghosh, T K, Glasow, R, Gupta, S K, Guskov, B, Gustafsson, H.A., Gutbrod, H H, Higuchi, R, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Kampert, K H, Karadjev, K, Karpio, K, Kato, S, Kees, S, Kim, H, Kolb, B W, Kosarev, I, Koutcheryaev, I, Krumpel, T, Kugler, A, Kulinich, P, Kurata, M, Kurita, K, Kuzmin, N, Langbein, I, Lebedev, A, Lee, YY, Lohner, H, Luquin, L, Mahapatra, D P, Manko, V, Martin, M, Martinez, G, Maximov, A, Mehdiyev, R, Mgebrichvili, G, Miake, Y, Mikhalev, D, Mir, M F, Mishra, G C, Miyamoto, Y, Morrison, D, Mukhopadhyay, D S, Myalkovski, V, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Neumaier, S, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Obenshain, F E, Oskarsson, A, Otterlund, I, Pachr, M, Parfenov, A, Pavliouk, S, Peitzmann, T, Petracek, V, Plasil, F, Pinganaud, W, Purschke, M L, Raeven, B, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, V S, Rao, N K, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Roy, C, Rubio, J M, Sako, H, Sambyal, S S, Santo, R, Sato, S, Schlagheck, H, Schutz, Y, Shabratova, G, Shah, T H, Sibiriak, I, Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Soderstrom, K, Solomey, N, Sorensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stuken, D, Sumbera, M, Svensson, T, Trivedi, M D, Tsvetkov, A., Tykarski, L, Urbahn, J, von der Pijll, E C, von Eijndhoven, N, von Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopianov, A, Voros, S, Wyslouch, B, Yagi, K, Yokota, Y, Young, G R, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics
- Subjects
Nuclear Theory ,NUCLEAR COLLISIONS ,EXPANSION ,HEAVY-ION COLLISIONS ,Nuclear Experiment - Abstract
Neutral pion production in central 158A GeV Pb-208 + Pb-208 collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The pi(0) transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow one to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out.
- Published
- 1999