Λ, Ξ and Ω production in PbPb collisions at 158 A GeV/c

✍ Scribed by E. Andersen; F. Antinori; N. Armenise; J. Bán; D. Barberis; H. Beker; W. Beusch; I.G. Bloodworth; J. Böhm; R. Caliandro; M. Campbell; E. Cantatore; N. Carrer; M.G. Catanesi; E. Chesi; M. Dameri; G. Darbo; A. Diaczek; D. Di Bari; S. Di Liberto; A. Di Mauro; D. Elia; D. Evans; K. Fanebust; R.A. Fini; J.C. Fontaine; J. Ftáčnik; B. Ghidini; G. Grella; M. Guida; E.H.M. Heijne; H. Helstrup; A.K. Holme; D. Huss; A. Jacholkowski; G.T. Jones; P. Jovanovic; A. Jusko; V.A. Kachanov; T. Kachelhoffer; J.B. Kinson; A. Kirk; W. Klempt; K. Knudson; I. Králik; J.C. Lassalle; V. Lenti; R. Lietava; R.A. Loconsole; G. Løvhøiden; M. Lupták; V. Mack; V. Manzari; P. Martinengo; M.A. Mazzoni; F. Meddi; A. Michalon; M.E. Michalon-Mentzer; P. Middelkamp; M. Morando; M.T. Muciaccia; E. Nappi; F. Navach; P.I. Norman; B. Osculati; B. Pastirčák; F. Pellegrini; K. Píška; F. Posa; E. Quercigh; R.A. Ricci; G. Romano; G. Rosa; L. Rossi; H. Rotscheidt; K. Šafařík; S. Saladino; C. Salvo; L. Šándor; T. Scognetti; G. Segato; M. Sené; R. Sené; S. Simone; A. Singovski; W. Snoeys; P. Staroba; S. Szafran; M. Thompson; T.F. Thorsteinsen; G. Tomasicchio; T.S. Tveter; J. Urbán; G. Vassiliadis; M. Venables; O. Villalobos Baillie; T. Virgili; A. Volte; M.F. Votruba; P. Závada

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 470 KB
• Volume: 638
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(98)00406-0

✦ Synopsis

Enhanced production of strange baryons and anti-baryons at central rapidity in S-W and S-S with respect to p-A reactions has been reported by the CERN experiments WA85 and WA94. The WA97 experiment is extending such a study to Pb-Pb collisions making use of the newly developed silicon pixel detectors.

Results on A, E-and ft-production in Pb-Pb collisions at 158 A GeV/c at central rapidity are presented. Transverse mass spectra and particle ratios are presented. Hyperon yields are given as a function of the collision centrality and compared with those obtained from p-Pb collisions using the same experimental setup.