Freeze-Out Parameters in Central 158A GeV P[number sign] 208 b+Pb Collision80s

Freeze-Out Parameters in Central 158A GeV P[number sign] 208 b+Pb Collision80s

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 lar...

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Veröffentlicht in:Physical review letters 1999-08, Vol.83:5
Hauptverfasser: Aggarwal, M.M., Bhatia, V.S., Agnihotri, A., Bhalla, K.B., Gupta, S.K., Raniwala, R., Raniwala, S., 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., Angelis, A.L., Donni, P., Foka, P., Kalechofsky, H., Martin, M., Naef, H., Rosselet, L., Rubio, J.M., Solomey, N., Voeroes, S., 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., Arefiev, V., Astakhov, V., Avdeitchikov, V., Baldine, A., Barabach, L., Batiounia, B., Chalyshev, V., Djordjadze, V., Frolov, V., Ga
Format: Artikel
Sprache:eng
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663450 - Heavy-Ion-Induced Reactions & Scattering- (1992-)
ACCELERATORS
BOSONS
CERN SPS SYNCHROTRON
CHARGED-PARTICLE REACTIONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
ELEMENTS
HADRONS
HEAVY ION REACTIONS
LEAD
LEAD 208 REACTIONS
MASS SPECTRA
MESONS
METALS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
SPECTRA
SYNCHROTRONS
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Zusammenfassung: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 ]
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.83.926