System-size and centrality dependence of charged kaon and pion production in nucleus-nucleus collisions at 40A GeV and 158A GeV beam energy

被引：34

作者：

Anticic, T. ^{[1
]}

Baatar, B. ^{[9
]}

Barna, D. ^{[5
]}

Bartke, J. ^{[7
]}

Beck, H. ^{[10
]}

Betev, L. ^{[11
]}

Bialkowska, H. ^{[20
]}

Blume, C. ^{[10
]}

Bogusz, M. ^{[22
]}

Boimska, B. ^{[20
]}

Book, J. ^{[10
]}

Botje, M. ^{[2
]}

Buncic, P. ^{[11
]}

Cetner, T. ^{[22
]}

Christakoglou, P. ^{[2
]}

Chung, P. ^{[19
]}

Chvala, O. ^{[15
]}

Cramer, J. G. ^{[19
]}

Dinkelaker, P. ^{[10
]}

Eckardt, V. ^{[14
]}

Fodor, Z. ^{[5
]}

Foka, P. ^{[8
]}

Friese, V. ^{[8
]}

Gazdzicki, M. ^{[10
,12
]}

Grebieszkow, K. ^{[22
]}

Hoehne, C. ^{[8
]}

Kadija, K. ^{[1
]}

Karev, A. ^{[11
]}

Kliemant, M. ^{[10
]}

Kolesnikov, V. I. ^{[9
]}

Kollegger, T. ^{[10
]}

Kowalski, M. ^{[7
]}

Kresan, D. ^{[8
]}

Laszlo, A. ^{[5
]}

Lacey, R. ^{[19
]}

van Leeuwen, M. ^{[2
]}

Lungwitz, B. ^{[10
]}

Mackowiak, M. ^{[22
]}

Makariev, M. ^{[18
]}

Malakhov, A. I. ^{[9
]}

Mateev, M. ^{[17
]}

Melkumov, G. L. ^{[9
]}

Mitrovski, M. ^{[10
]}

Mrowczynski, St ^{[12
]}

Nicolic, V. ^{[1
]}

Palla, G. ^{[5
]}

Panagiotou, A. D. ^{[3
]}

Peryt, W. ^{[22
]}

Pluta, J. ^{[22
]}

Prindle, D. ^{[16
]}

机构：

[1] Rudjer Boskovic Inst, Zagreb, Croatia

[2] NIKHEF, Amsterdam, Netherlands

[3] Univ Athens, Dept Phys, Athens, Greece

[4] Eotvos Lorant Univ, Budapest, Hungary

[5] Hungarian Acad Sci, Wigner Res Ctr Phys, Budapest, Hungary

[6] MIT, Cambridge, MA 02139 USA

[7] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, Krakow, Poland

[8] GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany

[9] Joint Inst Nucl Res, Dubna, Russia

[10] Goethe Univ Frankfurt, Fachbereich Phys, Frankfurt, Germany

[11] CERN, Geneva, Switzerland

[12] Jan Kochanowski Univ, Inst Phys, Kielce, Poland

[13] Univ Marburg, Fachbereich Phys, D-3550 Marburg, Germany

[14] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[15] Charles Univ Prague, Inst Particle & Nucl Phys, Prague, Czech Republic

[16] Univ Washington, Nucl Phys Lab, Seattle, WA 98195 USA

[17] Sofia Univ St Kliment Ohridski, Dept Atom Phys, Sofia, Bulgaria

[18] BAS, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[19] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

[20] Inst Nucl Studies, PL-00681 Warsaw, Poland

[21] Univ Warsaw, Inst Expt Phys, Warsaw, Poland

[22] Warsaw Univ Technol, Fac Phys, Warsaw, Poland

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 05期

关键词：

HEAVY-ION COLLISIONS; STRANGENESS PRODUCTION;

D O I：

10.1103/PhysRevC.86.054903

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：

Measurements of charged pion and kaon production are presented in centrality selected Pb + Pb collisions at 40A GeV and 158A GeV beam energy as well as in semicentral C + C and Si + Si interactions at 40A GeV. Transverse mass spectra, rapidity spectra, and total yields are determined as a function of centrality. The system-size and centrality dependence of relative strangeness production in nucleus-nucleus collisions at 40A GeV and 158A GeV beam energy are derived from the data presented here and from published data for C + C and Si + Si collisions at 158A GeV beam energy. At both energies a steep increase with centrality is observed for small systems followed by a weak rise or even saturation for higher centralities. This behavior is compared to calculations using transport models (ultra-relativistic quantum molecular dynamics and hadron-string dynamics), a percolation model, and the core-corona approach.

引用

页数：14

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