Freeze-Out Parameters in Central 158A GeV P{number_sign}^{208 b+Pb Collision80s}

Journal Article · Sun Aug 01 00:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.83.926· OSTI ID:365893

Aggarwal, M M; Bhatia, V S ^[1]; Agnihotri, A; Bhalla, K B; Gupta, S K; Raniwala, R; Raniwala, S ^[2]; Ahammed, Z; Chattopadhyay, S; Das, A C; Dutta Majumdar, M R; Ganti, M S; Mukhopadhyay, D S; Nayak, T K; Sinha, B C; Trivedi, M D; Viyogi, Y P ^[3]; Angelis, A L; Donni, P; Foka, P ; Kalechofsky, H; Martin, M; Naef, H; Rosselet, L; Rubio, J M; Solomey, N; Voeroes, S ^[4]; Antonenko, V; Cherbatchev, R; Doubovik, I; Fokin, S; Ippolitov, M; Karadjev, K; Koutcheryaev, I; Lebedev, A; Manko, V; Mgebrichvili, G; Nianine, A; Sibiriak, I; Tsvetkov, A; Vinogradov, A ^[5]; Arefiev, V; Astakhov, V; Avdeitchikov, V; Baldine, A; Barabach, L; Batiounia, B; Chalyshev, V; Djordjadze, V; Frolov, V; Gavrishchuk, O; Guskov, B; Kosarev, I; Kuzmin, N; Maximov, A; Mehdiyev, R; Mikhalev, D; Myalkovski, V; Nikitine, V; Nikolaev, S; Nomokonov, P; Parfenov, A; Pavliouk, S; Roufanov, I; Shabratova, G; Slavine, N; Vodopianov, A ^[6]; Awes, T C; Kim, H; Plasil, F; Stankus, P; Young, G R ^[7]; Baba, P V; Badyal, S K; Dutt, S; Mir, M F; Rao, N K; Sambyal, S S; Shah, T H ^[8]; Barlag, C; Bathe, S; Blume, C; Bohne, E; Boeroecz, Z K; Bucher, D; Buesching, H; Claussen, A; Glasow, R; Kampert, K; Kees, S; Kruempel, T; Peitzmann, T; Reygers, K; Santo, R; Schlagheck, H; Stueken, D ^[9]; Bernier, T; Delagrange, H; Gutbrod, H H; Luquin, L; Martinez, G; Nayak, S K; Pinganaud, W; Retiere, F; Roy, C; Schutz, Y and others

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1. University of Panjab, Chandigarh 160014 (India)
2. University of Rajasthan, Jaipur 302004, Rajasthan (India)
3. Variable Energy Cyclotron Centre, Calcutta 700 064 (India)
4. University of Geneva, CH-1211 Geneva 4 (Switzerland)
5. RRC Kurchatov Institute, RU-123182 Moscow (Russia)
6. Joint Institute for Nuclear Research, RU-141980 Dubna (Russia)
7. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6372 (United States)
8. University of Jammu, Jammu 180001 (India)
9. University of Muenster, D-48149 Muenster (Germany)

Neutral pion production in central 158A GeV {sup 208}Pb+ {sup 208} Pb collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The {pi}{sup 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. {copyright} {ital 1999} {ital The American Physical Society }

• DOE Contract Number: FC02-94ER40818
• OSTI ID: 365893
• Journal Information: Physical Review Letters, Vol. 83, Issue 5; Other Information: PBD: Aug 1999
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
LEAD
HEAVY ION REACTIONS
LEAD 208 REACTIONS
CERN SPS SYNCHROTRON
PIONS NEUTRAL
MASS SPECTRA
PARTICLE PRODUCTION