Energy dependence of hyperon production in nucleus-nucleus collisions at SPS
- DI BARI, Domenico
- Bacon PA
- Badala A
- Barbera R
- Belogianni A
- Bhasin A
- Bloodworth IJ
- Bombara M
- Bull SA
- Caliandro R
- Campbell M
- Carena W
- Carrer N
- Clarke RF
- Dainese A
- de Haas AP
- de Rijke PC
- Di Bari D
- Di Liberto S
- Divia R
- Elia D
- Evans D
- Feofilov GA
- Fini RA
- Ganoti P
- Ghidini B
- Grella G
- Helstrup H
- Hetland KE
- Holme AK
- Jacholkowski A
- Jones GT
- Jovanovic P
- Jusko A
- Kamermans R
- Kinson JB
- Knudson K
- Kolozhvari AA
- Kondratiev V
- Kralik I
- Kravcakova A
- Kuijer P
- Lenti V
- Lietava R
- Lovhoiden G
- Manzari V
- Martinska G
- Mazzoni MA
- Meddi F
- Michalon A
- Morando M
- Nappi E
- Navach E
- Norman PI
- Palmeri A
- Pappalardo GS
- Pastircak B
- Pisut J
- Pisutova N
- Posa E
- Quercigh E
- Riggi F
- Rohrich D
- Romano G
- Safarik K
- Sandor L
- Schillings E
- Segato G
- Sene M
- Sene R
- Snoeys W
- Soramel F
- Spyropoulou Stassinaki M
- Staroba P
- Toulina TA
- Turrisi R
- Tveter TS
- Urban J
- Valiev F
- van den Brink A
- van de Ven P
- Vyvre PV
- van Eijndhoven N
- van Hunen J
- Vascotto A
- Vik T
- Baillie OV
- Vinogradov L
- Virgili T
- Votruba ME
- Vrlakova J
- Zavada P.
- BRUNO, GIUSEPPE EUGENIO
DOIAbstract
A measurement of strange baryon and antibaryon production in Pb-Pb collisions has been carried out by the NA57 experiment at the CERN SPS, with 40 and 158 A GeV/c beam momentum. Results on Lambda, Xi and Omega hyperon yields at mid-rapidity in the most central 53% of Pb-Pb collisions at 40 A GeV/c are presented and compared with those obtained at higher energy, in the same collision centrality range. The Lambda and Xi(-) yields per unit rapidity stay roughly constant while those of Omega(-), A, (&UXi;) over bar (+) and (&UOmega;) over bar (+) increase when going to the higher SPS energy. Hyperon yields at the SPS are compared with those from the STAR experiment in root(s)NN = 130 GeV Au-Au collisions at RHIC. (C) 2004 Elsevier B.V. ...
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