Sideward flow of K+ mesons in Ru plus Ru and Ni plus Ni reactions near threshold

被引:101
|
作者
Crochet, P
Herrmann, N
Wisniewski, K
Leifels, Y
Andronic, A
Averbeck, R
Devismes, A
Finck, C
Gobbi, A
Hartmann, O
Hildenbrand, KD
Koczon, P
Kress, T
Kutsche, R
Reisdorf, W
Schüll, D
Alard, JP
Barret, V
Basrak, Z
Bastid, N
Belyaev, I
Bendarag, A
Berek, G
Caplar, R
Cindro, N
Dupieux, P
Dzelalija, M
Eskef, M
Fodor, Z
Grishkin, Y
Hong, B
Kecskemeti, J
Kim, YJ
Kirejczyk, M
Korolija, M
Kotte, R
Kowalczyk, M
Lebedev, A
Lee, KS
Manko, V
Merlitz, H
Mohren, S
Moisa, D
Neubert, W
Nianine, A
Pelte, D
Petrovici, M
Plettner, C
Rami, F
de Schauenburg, B
机构
[1] Gesell Schwerionenforsch, Darmstadt, Germany
[2] Univ Clermont Ferrand 2, Photochim Mol & Macromol Lab, CNRS, IN2P3,Lab Phys Corpusculaire, F-63177 Clermont Ferrand, France
[3] Univ Blaise Pascal, Clermont Ferrand, France
[4] Univ Heidelberg, Inst Phys, D-6900 Heidelberg, Germany
[5] Warsaw Univ, Inst Expt Phys, Warsaw, Poland
[6] Natl Inst Nucl Phys & Engn, Bucharest, Romania
[7] Rudjer Boskovic Inst, Zagreb, Croatia
[8] Inst Theoret & Expt Phys, Moscow 117259, Russia
[9] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary
[10] Korea Univ, Seoul 136701, South Korea
[11] Forschungszentrum Rossendorf EV, Dresden, Germany
[12] IV Kurchatov Atom Energy Inst, Moscow 123182, Russia
[13] CNRS, Inst Rech Subaton, IN2P3, Strasbourg, France
[14] Univ Strasbourg 1, Strasbourg, France
基金
匈牙利科学研究基金会;
关键词
D O I
10.1016/S0370-2693(00)00712-7
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Experimental data on K+ meson and proton sideward now measured with the FOPI detector at SIS/GSI in the reactions Ru + Ru at 1.69 A GeV and Ni + Ni at 1.93 A GeV are presented. The K+ sideward flow is found to be anti-correlated (correlated) with the one of protons at low (high) transverse momenta. When compared to the predictions of a transport model, the data favour the existence of an in-medium repulsive K+-nucleon potential. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:6 / 12
页数:7
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