Enhancement of central Δ, Ξ and Ω yields in Pb-Pb collisions at 158 A GeV/c

被引：164

作者：

Andersen, E ^{[1
]}

Antinori, F

Armenise, N

Bakke, H

Ban, J

Barberis, D

Beker, H

Beusch, W

Bloodworth, IJ

Bohm, J

Caliandro, R

Campbell, M

Cantatore, E

Carrer, N

Catanesi, MG

Chesi, E

Dameri, M

Darbo, G

Diaczek, A

Di Bari, D

Di Liberto, S

Earl, BC

Elia, D

Evans, D

Fanebust, K

Fini, RA

Fontaine, JC

Ftacnik, J

Ghidini, B

Grella, G

Guida, M

Heijne, EHM

Helstrup, H

Holme, AK

Huss, D

Jacholkowski, A

Jones, GT

Jovanovic, P

Jusko, A

Kachanov, VA

Kachelhoffer, T

Kinson, JB

Kirk, A

Klempt, W

Knudsen, BTH

Knudson, K

Kralik, I

Lassalle, JC

Lenti, V

Lietava, R

机构：

[1] Univ Bergen, Inst Fys, Bergen, Norway

[2] Univ Athens, Dept Nucl Phys, Athens, Greece

[3] Univ Bari, Dipartimento IA Fis, Bari, Italy

[4] Politecn Bari, Bari, Italy

[5] Ist Nazl Fis Nucl, I-70126 Bari, Italy

[6] Hogskolen Bergen, Bergen, Norway

[7] Univ Birmingham, Birmingham, W Midlands, England

[8] CERN, European Lab Particle Phys, CH-1211 Geneve, Switzerland

[9] Univ Genoa, Dipartimento Fis, Genova, Italy

[10] Ist Nazl Fis Nucl, I-16146 Genova, Italy

[11] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia

[12] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy

[13] Univ Haute Alsace, GRPHE, Mulhouse, France

[14] Univ Oslo, Inst Fys, N-0316 Oslo, Norway

[15] Univ Padua, Dipartimento Fis, Padua, Italy

[16] Ist Nazl Fis Nucl, Padua, Italy

[17] Coll France, F-75231 Paris, France

[18] IN2P3, Paris, France

[19] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[20] Univ La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[21] Ist Nazl Fis Nucl, Rome, Italy

[22] Univ Salerno, Dipartimento Sci Fis ER Caianiello, I-84100 Salerno, Italy

[23] INFN, Salerno, Italy

[24] Inst High Energy Phys, Protvino, Russia

[25] Ctr Rech Nucl, Strasbourg, France

来源：

PHYSICS LETTERS B | 1998年 / 433卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(98)00689-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Lambda, Xi and Omega yields and transverse mass spectra have been measured in Pb-Pb and p-Pb collisions at 158 A GeV/c. The yields in Pb-Pb interactions are presented as a function of the collision centrality and compared with those obtained from p-Pb collisions. Strangeness enhancement is observed which increases with centrality and with the strangeness content of the hyperon. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：209 / 216

页数：8

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