1. Lambda and Antiambda production in central Pb-Pb collisions at 40, 80, and 158A GeV
- Author
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Antičić, Tome, Baatar, B., Barna, D., Bartke, J., Behler, M., Betev, L., Bialkowska, H., Billimeier, 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., 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, Krešo, Karev, A., Kolesnikov, V.I., Kollegger, T., Kornas, E., Korus, R., Kowalski, M., Kraus, I., Kreps, M., Levai, P., Litov, L., Makariev, M., Malakhov, A.I., Markert, C., Mateev, M., Mayes, B.W., Melkumov, G.L., Meurer, C., Mischke, A., Mitrovski, M., Molnar, J., Palla, G., Panagiotou, A.D., Panayotov, D., Perl, K., Petridis, A., Pikna, M., Pinsky, L., Puhlhofer, F., Reid, J.G., 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., Šuša, Tatjana, Szentpetery, I., Sziklai, J., Trainor, T.A., Varga, D., Vassiliou, M., Veres, G.I., Vesztergombi, G., Vranić, Danilo, Wetzler, A., Wlodarczyk, Z., Yoo, I.K., Zaranek, J., and Zimanyi, J.
- Subjects
Physics ,lambda ,antilambda ,strange particle ,production ,Pb+Pb collsions ,NA49 ,High Energy Physics::Experiment ,Nuclear Experiment - 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.
- Published
- 2004