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:6464074

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; Ga,

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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)

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: 6464074
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Vol. 83:5; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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 REACTIONS
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
SPECTRA
SYNCHROTRONS