Strange and multistrange baryon production in Pb-Pb collisions at 158 A GeV/c

被引：0

作者：

Andersen, E ^{[1
]}

Andrighetto, A

Antinori, F

Armenise, N

Ban, J

Barberis, D

Beker, H

Beusch, W

Bohm, J

Caliandro, R

Campbell, M

Cantatore, F

Carrer, N

Catanesi, MG

Chesi, E

Dameri, M

Darbo, G

Davies, JP

Diaczek, A

Di Bari, D

Di Liberto, S

Di Mauro, A

Elia, D

Evans, D

Fanebust, K

Fini, RA

Fontaine, JC

Ftacnik, J

Geist, W

Ghidini, B

Grella, G

Guida, M

Heijne, EHM

Helstrup, H

Holme, AK

Huss, D

Jacholkowski, A

Jovanovic, P

Jusko, A

Kachanov, VA

Kachelhoffer, T

Kinson, JB

Kirk, A

Klempt, W

Knudson, K

Kralik, I

Lassalle, JC

Lenti, V

Lien, JA

Lietava, R

机构：

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

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

[3] Univ Bari, Dipartmento Fis, Bari, Italy

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

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

[6] CERN, European Lab Particle Phys, CH-1211 Geneva, Switzerland

[7] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[8] Univ Genoa, Dipartimento Fis, Genoa, Italy

[9] Inst Phys Expt, Kosice, Slovakia

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

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

[12] Univ Oslo, Inst Fys, Oslo, Norway

[13] Ist Nazl Fis Nucl, Padua, Italy

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

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

[16] IN2P3, Paris, France

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

[18] Tech Univ, Dept Phys, Prague, Czech Republic

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

[20] Ist Nazl Fis Nucl, Rome, Italy

[21] Univ Salerno, Dipartimento Fis, I-84100 Salerno, Italy

[22] INFN, Salerno, Italy

[23] Inst High Energy Phys, Protvino, Russia

[24] Ctr Rech Nucl, Strasbourg, France

来源：

NUCLEAR PHYSICS A | 1998年 / 630卷 / 1-2期

关键词：

D O I：

暂无

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：

The series of experiments (WA85, WA94 and WA97) at the Omega spectrometer at CERN SPS have systematically studied the production of different strange particles. Strangeness enhancements at central rapidities have been reported by WA85 and WA94 in S-W and S-S with respect to p-A collisions. For the investigation of Pb-Pb interactions in the WA97 experiment a new detector suitable for high particle densities, the Pixel Tracking Chamber, has been developed based on silicon pixel detectors. The results on production ratios and cross sections of Lambda, <(Lambda)over bar>, Xi(-), <(Xi)over bar>(+), Omega(-) and <(Omega)over bar>(+) detected by this experiment are presented. A significant enhancement of the Omega over Xi ratio is observed when comparing p-Pb to Pb-Pb data (a factor of about 3).

引用

页码：582C / 588C

页数：7

共 50 条

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Fini, RA
Antinori, F
Beusch, W
Bloodworth, IJ
Caliandro, R
Carrer, N
Di Bari, D
Di Liberto, S
Elia, D
Evans, D
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Fini, RA
Ftácnik, J
Ghidini, B
Grella, G
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Jacholkowski, A
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Kinson, JB
Knudson, K
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Romano, G
Safarik, K
Sándor, L
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Staroba, P
Thompson, M
Torrieri, GD
Urbán, J
Vik, T
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