| Article | |
| Report number | nucl-ex/0210002 |
| Title | One-, Two- and Three-Particle Distributions from 158 A GeV/c Central Pb+Pb Collisions |
| Author(s) |
Aggarwal, M.M. ; Angelis, A.L.S. ; Antonenko, V. ; Arefev, V. ; Astakhov, V. ; Avdeitchikov, V. ; Awes, T.C. ; Baba, P.V.K.S. ; Badyal, S.K. ; Bathe, S. ; Batiounia, B. ; Bernier, T. ; Bhalla, K.B. ; Bhatia, V.S. ; Blume, C. ; Bucher, D. ; Busching, H. ; Carlen, L. ; Chattopadhyay, S. ; Decowski, M.P. ; Delagrange, H. ; Donni, P. ; Dutta Majumdar, M.R. ; El Chenawi, K. ; Enosawa, K. ; Fokin, S. ; Frolov, V. ; Ganti, M.S. ; Garpman, S. ; Gavrishchuk, O. ; Geurts, F.J.M. ; Ghosh, T.K. ; Glasow, R. ; Guskov, B. ; Gustafsson, H.A. ; Gutbrod, H.H. ; Hrivnacova, I. ; Ippolitov, M. ; Kalechofsky, H. ; Kamermans, R. ; Karadjev, K. ; Karpio, K. ; Kolb, B.W. ; Kosarev, I. ; Koutcheryaev, I. ; Kugler, A. ; Kulinich, P. ; Kurata, M. ; Lebedev, A. ; Lohner, H. ; Mahapatra, D.P. ; Manko, V. ; Martin, M. ; Martinez, G. ; Maximov, A. ; Miake, Y. ; Mishra, G.C. ; Mohanty, B. ; Mora, M.J. ; Morrison, D. ; Mukhanova, T. ; Mukhopadhyay, D.S. ; Naef, H. ; Nandi, B.K. ; Nayak, S.K. ; Nayak, T.K. ; Nianine, A. ; Nikitine, V. ; Nikolaev, S. ; Nilsson, P. ; Nishimura, S. ; Nomokonov, P. ; Nystrand, J. ; Oskarsson, A. ; Otterlund, I. ; Peitzmann, T. ; Peressounko, D. ; Petracek, V. ; Plasil, F. ; Purschke, M.L. ; Rak, J. ; Raniwala, R. ; Raniwala, S. ; Rao, N.K. ; Reygers, K. ; Roland, G. ; Rosselet, L. ; Roufanov, I. ; Rubio, J.M. ; Sambyal, S.S. ; Santo, R. ; Sato, S. ; Schlagheck, H. ; Schmidt, H.R. ; Schutz, Y. ; Shabratova, G. ; Shah, T.H. ; Sibiriak, I. ; Siemiarczuk, T. ; Silvermyr, D. ; Sinha, B.C. ; Slavine, N. ; Soderstrom, K. ; Sood, G. ; Sorensen, S.P. ; Stankus, P. ; Stefanek, G. ; Steinberg, P. ; Stenlund, E. ; Sumbera, M. ; Svensson, T. ; Tsvetkov, A. ; Tykarski, L. ; van de Pijll, E.C. ; van Eijndhoven, N. ; van Nieuwenhuizen, G.J. ; Vinogradov, A. ; Viyogi, Y.P. ; Vodopianov, A.S. ; Voros, S. ; Wyslouch, B. ; Young, G.R. |
| Publication | 2003 |
| Imprint | 2 Oct 2002 |
| Number of pages | 24 |
| Note | 24 pages including 17 figures |
| In: | Phys. Rev. C 67 (2003) 014906 |
| DOI | 10.1103/PhysRevC.67.014906 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; WA98 |
| Abstract | Several hadronic observables have been studied in central 158 A GeV Pb+Pb collisions using data measured by the WA98 experiment at CERN: single negative pion and kaon production, as well as two- and three-pion interferometry. The Wiedemann-Heinz hydrodynamical model has been fitted to the pion spectrum, giving an estimate of the temperature and transverse flow velocity. Bose-Einstein correlations between two identified negative pions have been analysed as a function of kT, using two different parameterizations. The results indicate that the source does not have a strictly boost invariant expansion or spend time in a long-lived intermediate phase. A comparison between data and a hydrodynamical based simulation shows very good agreement for the radii parameters as a function of kT. The pion phase-space density at freeze-out has been measured and agrees well with the Tomasik-Heinz model. A large pion chemical potential close to the condensation limit of the pion mass seems to be excluded. The three-pion Bose-Einstein interferometry shows a substantial contribution of the genuine three-pion correlation, but not quite as large as expected for a fully chaotic and symmetric source. |
Corresponding record in: Inspire
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Record creato 2002-10-03, modificato l'ultima volta il 2024-05-08
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