We present a study of the transverse momentum and transverse mass of J/11,mesons pro- duced in nucleus-nucleus and p-nucleus reactions. They include the most recent data col- lected by the NA50 experiment in Pb-Pb and p-A reactions at 158 GeV/c and 400 GeV/c incident momentum respectively. Together with S-U results previously published by ex- periment NA38, the mean squared transverse momentum of J/Psi mesons exhibit a scaling behaiiour which could result from initial state parton interaction. However, for the most central Pb-Pb collisions a saturation effect is observed as a function of centrality.

Transverse momentum and transverse mass distributions of mesons produced in p-A and Pb-Pb interactions at the CERN SPS

ARNALDI, Roberta;BEOLE', Stefania;CHIAVASSA, Emilio Luciano;DELLACASA, Giuseppe;GALLIO, Mauro;MASERA, Massimo;RAMELLO, Luciano;SITTA, Mario;VERCELLIN, Ermanno;
2003-01-01

Abstract

We present a study of the transverse momentum and transverse mass of J/11,mesons pro- duced in nucleus-nucleus and p-nucleus reactions. They include the most recent data col- lected by the NA50 experiment in Pb-Pb and p-A reactions at 158 GeV/c and 400 GeV/c incident momentum respectively. Together with S-U results previously published by ex- periment NA38, the mean squared transverse momentum of J/Psi mesons exhibit a scaling behaiiour which could result from initial state parton interaction. However, for the most central Pb-Pb collisions a saturation effect is observed as a function of centrality.
XVI International Conference on Particles and Nuclei
Osaka, Giappone
September 30 - October 4, 2002
721
C249
C252
A.B. Kurepin;B. Alessandro;C. Alexa;R. Arnaldi;M. Atayan;C. Baglin;A. Baldit;M. Bedjidian;S. Beolè;V. Boldea;P. Bordalo;S.R. Borenstein;G. Borges;A. Bussière;L. Capelli;C. Castanier;J. Castor;B. Chaurand;B. Cheynis;E. Chiavassa;C. Cicalò;T. Claudino;M.P. Comets;S. Constantinescu;P. Cortese;J. Cruz;A. De Falco;N. De Marco;G. Dellacasa;A. Devaux;S. Dita;O. Drapier;B. Espagnon;J. Fargeix;P. Force;M. Gallio;Y.K. Gavrilov;C. Gerschel;P. Giubellino;M.B. Golubeva;M. Gonin;A.A. Grigorian;S. Grigorian;J.Y. Grossiord;F.F. Guber;A. Guichard;H. Gulkanyan;R. Hakobyan;R. Haroutunian;M. Idzik;D. Jouan;T.L. Karavitcheva;L. Kluberg;A.B. Kurepin;Y. Le Bornec;C. Lourenço;P. Macciotta;M. Mac Cormick;A. Marzari-Chiesa;M. Masera;A. Masoni;M. Monteno;A. Musso;P. Petiau;A. Piccotti;J.R. Pizzi;W.L. Prado da Silva;F. Prino;G. Puddu;C. Quintans;L. Ramello;S. Ramos;P. Rato Mendes;L. Riccati;A. Romana;H. Santos;P. Saturnini;E. Scalas;E. Scomparin;S. Serci;R. Shahoyan;F. Sigaudo;M. Sitta;P. Sonderegger;X. Tarrago;N.S. Topilskaya;G.L. Usai;E. Vercellin;L. Villatte;N. Willis;T. Wu
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/124401
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