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

被引：1
|
作者：
Kurepin, AB [1 ]
机构：
[1] INR, Moscow, Russia
[2] Ist Nazl Fis Nucl, I-10125 Turin, Italy
[3] LAPP, CNRS, IN2P3, Annecy Le Vieux, France
[4] Univ Clermont Ferrand, LPC, Aubiere, France
[5] CNRS, IN2P3, Aubiere, France
[6] IFA, Bucharest, Romania
[7] Univ Cagliari, Cagliari, Italy
[8] Ist Nazl Fis Nucl, Cagliari, Italy
[9] CERN, CH-1211 Geneva 23, Switzerland
[10] LIP, P-1000 Lisbon, Portugal
[11] Univ Piemonte Orientale, Alessandria, Italy
[12] Univ Paris 11, IPN, Orsay, France
[13] CNRS, IN2P3, F-91405 Orsay, France
[14] Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France
[15] CNRS, IN2P3, Palaiseau, France
[16] Univ Turin, Turin, Italy
[17] Univ Lyon 1, IPN, F-69622 Villeurbanne, France
[18] CNRS, IN2P3, Villeurbanne, France
[19] YerPhI, Yerevan, Armenia
[20] IST, Lisbon, Portugal
[21] FPNT, Krakow, Poland
来源：
NUCLEAR PHYSICS A | 2003年 / 721卷
关键词：
D O I：
10.1016/S0375-9474(03)01042-X
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present a study of the transverse momentum and transverse mass of J/psi mesons produced in nucleus-nucleus and p-nucleus reactions. They include the most recent data collected 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 experiment NA38, the mean squared transverse momentum of J/psi mesons exhibit a scaling behaviour 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.
引用
收藏
页码：249C / 252C
页数：4
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