Freeze-Out Parameters in Central158AGeVP208b+P
M. M. Aggarwal,A. Agnihotri,Z. Ahammed,A.L.S. Angelis,[No Value] Antonenko, [No Value] Arefiev,[No Value] Astakhov,[No Value] Avdeitchikov,T. C. Awes,P.V.K.S. Baba,S. K. Badyal,A. Baldine,L. Barabach,C. Barlag,S. Bathe,B. Batiounia,T. Bernier,K. B. Bhalla,V. S. Bhatia,C. Blume,R. Bock,E.-M. Bohne,Z. Böröcz,D. Bucher,A. Buijs,H. Büsching,L. Carlèn,[No Value] Chalyshev,S. Chattopadhyay,R. Cherbatchev,T. Chujo,A. Claussen,A. C. Das,M.P. Decowski,H. Delagrange,[No Value] Djordjadze,P. Dönni, [No Value] Doubovik,S. Dutt,M. R. Dutta Majumdar,K. El Chenawi,S.M. Eliseev,K. Enosawa,P. Foka,S. Fokin, [No Value] Frolov, Ganti,S. Garpman,O. Gavrishchuk,F. J. M. Geurts,Tushar K. Ghosh,R. Glasow,S. K. Gupta,B.N. Gus'kov,H.-Å. Gustafsson,H.H. Gutbrod,R. Higuchi,I. Hřivnáčová,M. Ippolitov,H. Kalechofsky,R. Kamermans,K.H. Kampert,K. Karadjev,K. Karpio,S. Kato,S. Kees,H Kim,B. W. Kolb, [No Value] Kosarev, [No Value] Koutcheryaev,T. Krümpel,А. Куглер,P. Kulinich,Masahiro Kurata,K. Kurita,N. Kuzmin, [No Value] Langbein,A. Lebedev,Y.Y. Lee,H. Löhner,L. Luquin,D. P. Mahapatra,[No Value] Manko,Michel Martin,G. Martı́nez,A. Maximov,R. Mehdiyev,G. Mgebrichvili,Y. Miake,D. Mikhalev,MF Mir,G. C. Mishra, Yusuke Miyamoto,D. P. Morrison,D. Mukhopadhyay,[No Value] Myalkovski,H. Naef,B. K. Nandi,S. K. Nayak,T. K. Nayak,S. Neumaier,A. Nianine, N. Nikitine,С. Н. Николаев,P. Nilsson,S. Nishimura,P. Nomokonov,J. Nystrand,F.E. Obenshain,A. Öskarsson, [No Value] Otterlund,M. Pachr,A. Parfenov,S. Pavliouk,T. Peitzmann, [No Value] Petracek,F. Plášil,W. Pinganaud,M. L. Purschke,B. Raeven,J. Rak,R. Raniwala,S. Raniwala,V.S. Ramamurthy,N. Kameswara Rao,F. Retière,K. Reygers,G. Roland,L. Rosselet, [No Value] Roufanov,C. Roy,J. M. Rubio,H. Sako,S. Sambyal,R. Santo,Susumu Sato,H. Schlagheck,Y. Schütz,G. Shabratova,T. H. Shah, [No Value] Sibiriak,T. Siemiarczuk,D. Silvermyr,B. C. Sinha,N. Slavine, [No Value] Soderstrom,N. Solomey,S. Sörensen,P. W. Stankus,G. Stefanek,P. Steinberg,E. Stenlund,D. Stüken,M. Šumbera,Tomas Svensson, Trivedi,A. Tsvetkov,L. Tykarski,J. Urbahn, EC von der Pijll,N.v. Eijndhoven,GJ von Nieuwenhuizen,А. Виноградов,Y. P. Viyogi,A. Vodopianov,S. Vörös,B. Wysłouch,K. Yagi,Y. Yokota,G. R. Young Physical Review Letters（1999）
Abstract
Neutral pion production in central 158AGeV 208Pb+208Pb collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The π0 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.Received 29 January 1999DOI:https://doi.org/10.1103/PhysRevLett.83.926©1999 American Physical Society
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Key words
parameters,central<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml,freeze-out
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