STRANGE AND MULTISTRANGE BARYON PRODUCTION IN PB-PB COLLISIONS AT 158A GEV C/

Authors
ANDERSEN E 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 DIBARI D DILIBERTO S DIMAURO 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 LOCONSOLE RA LOVHOIDEN G LUPTAK M MACHA I MACK V MANZARI V MARTINENGO P MAZZONI MA MEDDI F MICHALON A MICHALONMENTZER ME MIDDELKAMP P MORANDO M MUCIACCIA MT NAPPI E NAVACH F NORMAN K OSCULATI B PASTIRCAK B PELLEGRINI F PISKA K POSA F QUERCIGH E RICCI RA ROMANO G ROSA G ROSSI L ROTSCHEIDT H SAFARIK K SALADINO S SALVO C SANDOR L SCOGNETTI T SEGATO G SENE M SENE R SENNELS P SIMONE S SINGOVSKI A SOPKO B STAROBA P STASTNY J STORAS T SZAFRAN S THORSTEINSEN TF TOMASICCHIO G URBAN J VANICKOVA M VASSILIADIS G VENABLES M BAILLIE OV VIRGILI T VOLTE A VOLTOLINI C VOTRUBA MF ZAVADA P
Citation
E. Andersen et al., STRANGE AND MULTISTRANGE BARYON PRODUCTION IN PB-PB COLLISIONS AT 158A GEV C/, Nuclear physics. A, 630(1-2), 1998, pp. 582-588
Citations number
11
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
630
Issue
1-2
Year of publication
1998
Pages
582 - 588
Database
ISI
SICI code
0375-9474(1998)630:1-2<582:SAMBPI>2.0.ZU;2-9
Abstract
The series of experiments (WA85, WA94 and WA97) at the Omega spectrome ter at CERN SPS have systematically studied the production of differen t strange particles. Strangeness enhancements at central rapidities ha ve been reported by WA85 and WA94 in S-W and S-S with respect to p-A c ollisions. For the investigation of Pb-Pb interactions in the WA97 exp eriment 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, <(Lam bda)over bar>, Xi(-), <(Xi)over bar>(+), Omega(-) and <(Omega)over bar >(+) detected by this experiment are presented. A significant enhancem ent of the Omega over Xi ratio is observed when comparing p-Pb to Pb-P b data (a factor of about 3).