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

页码：249C / 252C

页数：4

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