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$\Omega$ and $\bar{\Omega}$ production in central Pb+Pb collisions at 40 and 158 AGeV

Authors :
Alt, C.
Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Betev, L.
Bialkowska, H.
Billmeier, A.
Blume, C.
Boimska, B.
Botje, M.
Bracinik, J.
Bramm, R.
Brun, R.
Buncic, P.
Cerny, V.
Christakoglou, P.
Chvala, O.
Cramer, J.G.
Csato, P.
Darmenov, N.
Dimitrov, A.
Dinkelaker, P.
Eckardt, V.
Farantatos, G.
Flierl, D.
Fodor, Z.
Foka, P.
Freund, P.
Friese, V.
Gal, J.
Gazdzicki, M.
Georgopoulos, G.
Gladysz, E.
Grebieszkow, K.
Hegyi, S.
Hohne, C.
Kadija, K.
Karev, A.
Kliemant, M.
Kniege, S.
Kolesnikov, V.I.
Kollegger, T.
Kornas, E.
Korus, R.
Kowalski, M.
Kraus, I.
Kreps, M.
van Leeuwen, M.
Levai, P.
Litov, L.
Lungwitz, B.
Makariev, M.
Malakhov, A.I.
Markert, C.
Mateev, M.
Mayes, B.W.
Melkumov, G.L.
Meurer, C.
Mischke, A.
Mitrovski, M.
Molnar, J.
Mrowczynski, St.
Palla, G.
Panagiotou, A.D.
Panayotov, D.
Petridis, A.
Pikna, M.
Pinsky, L.
Puhlhofer, F.
Reid, J.G.
Renfordt, R.
Richard, A.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Sann, H.
Schmitz, N.
Seyboth, P.
Sikler, F.
Sitar, B.
Skrzypczak, E.
Stefanek, G.
Stock, R.
Strobele, H.
Susa, T.
Szentpetery, I.
Sziklai, J.
Trainor, T.A.
Varga, D.
Vassiliou, M.
Veres, G.I.
Vesztergombi, G.
Vranic, D.
Wetzler, A.
Wlodarczyk, Z.
Yoo, I.K.
Zaranek, J.
Zimanyi, J.
Publication Year :
2004

Abstract

Results are presented on $\Omega$ production in central Pb+Pb collisions at 40 and 158A GeV beam energy. Given are transverse-mass spectra, rapidity distributions, and total yields for the sum $\Omega$+$\bar{\Omega}$ at 40 AGeV and for $\Omega$ and $\bar{\Omega}$ separately at 158 AGeV. The yields are strongly under-predicted by the string-hadronic UrQMD model and agree with predictions from a hadron gas model assuming strangeness under-saturation. Results are presented on Omega production in central Pb+Pb collisions at 40 and 158 AGeV beam energy. Given are transverse-mass spectra, rapidity distributions, and total yields for the sum Omega+Antiomega at 40 AGeV and for Omega and Antiomega separately at 158 AGeV. The yields are strongly under-predicted by the string-hadronic UrQMD model and are in better agreement with predictions from a hadron gas models.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.od........65..3162a6ea574fae7415555800603fcc8e