Enhancement of strange and multi-strange baryons in central Pb-Pb interactions at 158 GeV/c per nucleon

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作者
Evans, D [1 ]
Antinori, F
Bakke, H
Beusch, W
Bloodworth, IJ
Caliandro, R
Carrer, N
Di Bari, D
Di Liberto, S
Elia, D
Evans, D [1 ]
Fanebust, K
Fini, RA
Ftácnik, J
Ghidini, B
Grella, G
Helstrup, H
Holme, AK
Huss, D
Jacholkowski, A
Jones, GT
Kinson, JB
Knudson, K
Králik, I
Lenti, V
Lietava, R
Loconsole, RA
Lovhoiden, G
Manzari, V
Mazzoni, MA
Meddi, F
Michalon, A
Michalon-Mentzer, ME
Morando, M
Norman, PI
Pastircák, B
Quercigh, E
Romano, G
Safarík, K
Sándor, L
Segato, G
Staroba, P
Thompson, M
Thorsteinsen, TF
Torrieri, GD
Tveter, TS
Urbán, J
Baillie, OV
Virgili, T
Votruba, MF
机构
[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
[2] Univ Politecn Bari, Dipartimento IA Fis, Bari, Italy
[3] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[4] Univ Bergen, Inst Fys, Bergen, Norway
[5] Hogskolen Bergen, Bergen, Norway
[6] CERN, European Lab Particle Phys, CH-1211 Geneva, Switzerland
[7] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia
[8] Univ Haute Alsace, GRPHE, Mulhouse, France
[9] Univ Oslo, Inst Fys, N-0316 Oslo, Norway
[10] Univ Padua, Dipartimento Fis, Padua, Italy
[11] Ist Nazl Fis Nucl, Sez Padua, Padua, Italy
[12] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic
[13] Univ La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[14] Ist Nazl Fis Nucl, Sez Rome, I-00185 Rome, Italy
[15] Univ Salerno, Dipartimento Sci Fis, I-84100 Salerno, Italy
[16] Ist Nazl Fis Nucl, I-84100 Salerno, Italy
[17] ULP, IN2P3, Inst Rech Subatom, Strasbourg, France
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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
Strange and multi-strange baryon production is expected to be enhanced in heavy ion interactions if a phase transition from hadronic matter to a Quark-Gluon Plasma takes place. The production yields: and transverse mass spectra of strange and multi-strange baryons and anti-baryons are presented for lead-lead interactions at 158 GeV/c per nucleon. Yields and transverse mass spectra from proton-lead and proton-beryllium interactions, where no phase transition is expected, are also presented and compared to those from lead-lead interactions.
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页码:717C / 720C
页数:4
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