Energy dependence of Λ and Λ production at CERN-SPS Energies

A. Mischke, S. V. Afanasiev, T. Anticic, B. Baatar, D. Barna, J. Bartke, R. A. Barton, M. Behler, L. Betev, H. Białkowska, A. Billmeier, C. Blume, C. O. Blyth, B. Boimska, M. Botje, J. Bracinik, R. Bramm, R. Brun, P. Bunčić, V. CernyO. Chvala, J. G. Cramer, P. Csató, P. Dinkelaker, V. Eckardt, P. Filip, H. G. Fischer, Z. Fodor, P. Foka, P. Freund, V. Friese, J. Gál, M. Gaździcki, G. Georgopoulos, E. Gładysz, S. Hegyi, C. Höhne, G. Igo, P. G. Jones, K. Kadija, A. Karev, V. I. Kolesnikov, T. Kollegger, M. Kowalski, I. Kraus, M. Kreps, M. Van Leeuwen, P. Lévai, A. I. Malakhoy, S. Margetis, C. Markert, B. W. Mayes, G. L. Melkumov, C. Meurer, M. Mitrovski, J. Molnár, J. M. Nelson, G. Pálla, A. D. Panagiotou, K. Perl, A. Petridis, M. Pikna, L. Pinsky, F. Pühlhofer, J. G. Reid, R. Renfordt, W. Retyk, C. Roland, G. Roland, A. Rybicki, T. Sammer, A. Sandoval, H. Sann, N. Schmitz, P. Seyboth, F. Siklér, B. Sitar, E. Skrzypczak, G. T.A. Squier, R. Stock, H. Ströbele, T. Susa, Szentpétery, J. Sziklai, T. A. Trainor, D. Varga, M. Vassiliou, G. I. Veres, G. Vesztergombi, D. Vranić, S. Wenig, A. Wetzler, C. Whitten, I. K. Yoo, J. Zaranek, J. Zimányi

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Rapidity distributions for Λ and Λ hyperons in central Pb-Pb collisions at 40, 80 and 158 A·GeV and for Ks0 mesons at 158 A·GeV are presented. The lambda multiplicities are studied as a function of collision energy together with AGS and RHIC measurements and compared to model predictions. A different energy dependence of the Λ/π and Λ̄/π is observed. The Λ̄/Λ ratio shows a steep increase with collision energy. Evidence for a Λ̄/p̄ ratio greater than 1 is found at 40 A·GeV.

Original languageEnglish
Pages (from-to)453c-457c
JournalNuclear Physics A
Volume715
DOIs
Publication statusPublished - Mar 10 2003

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Mischke, A., Afanasiev, S. V., Anticic, T., Baatar, B., Barna, D., Bartke, J., Barton, R. A., Behler, M., Betev, L., Białkowska, H., Billmeier, A., Blume, C., Blyth, C. O., Boimska, B., Botje, M., Bracinik, J., Bramm, R., Brun, R., Bunčić, P., ... Zimányi, J. (2003). Energy dependence of Λ and Λ production at CERN-SPS Energies. Nuclear Physics A, 715, 453c-457c. https://doi.org/10.1016/S0375-9474(02)01433-1