(NA49 Collaboration)
Anticic, T; Baatar, B; Barna, D; Bartke, J; Behler, M; 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, JG; Csato, P; Darmenov, N; Dimitrov, A; Dinkelaker, P; Eckardt, V; Filip, P; Flierl, D; Fodor, Z; Foka, P; Freund, P; Friese, V; Gal, J; Gazdzicki, M; Georgopoulos, G; Gladysz, E; Hegyi, S; Hohne, C; Kadija, K; Karev, A; Kolesnikov, VI; Kollegger, T; Kornas, E; Korus, R; Kowalski, M; Kraus, I; Kreps, M; van Leeuwen, M; Levai, P; Litov, L; Makariev, M; Malakhov, AI; Markert, C; Mateev, M; Mayes, BW; Melkumov, GL; Meurer, C; Mischke, A; Mitrovski, M; Molnar, J; Mrowczynski, S; Palla, G; Panagiotou, AD; Panayotov, D; Perl, K; Petridis, A; Pikna, M; Pinsky, L; Puhlhofer, F; Reid, JG; Renfordt, R; Retyk, W; 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, TA; Varga, D; Vassiliou, M; Veres, GI; Vesztergombi, G; Vranic, D; Wetzler, A; Wlodarczyk, Z; Yoo, IK; Zaranek, J; Zimanyi, J;
(2004)
Lambda and Antiambda production in central Pb-Pb collisions at 40, 80, and 158A GeV.
Physical Review Letters, 93
(2).
022302/1-022302/5.
ISSN 0031-9007
Abstract
Production of Lambda and Antilambda hyperons was measured in central Pb-Pb collisions at 40, 80, and 158 A GeV beam energy on a fixed target. Transverse mass spectra and rapidity distributions are given for all three energies. The Lambda/pi ratio at mid-rapidity and in full phase space shows a pronounced maximum between the highest AGS and 40 A GeV SPS energies, whereas the Antilambda/pi ratio exhibits a monotonic increase.
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