Production of Λ, Λ, and Ξ-, Ξ+ particles in S+Pb collisions at 200 GeV/c per nucleon

E. Andersen, R. Blaes, J. M. Brom, H. L. Caines, M. Cherney, B. de la Cruz, C. Fernández, C. Garabatos, J. A. Garzón, W. Geist, D. E. Greiner, C. R. Gruhn, M. Hafidouni, A. Hill, J. Hrubec, P. G. Jones, E. G. Judd, J. P.M. Kuipers, M. Ladrem, P. Ladrón de GuevaraG. Løvhøiden, J. MacNaughton, J. Mosquera, Z. Natkaniec, J. M. Nelson, G. Neuhofer, C. Perez de los Heros, M. Pló, P. Porth, B. Powell, A. Ramil, H. Rohringer, I. Sakrejda, T. F. Thorsteinsen, J. Traxler, C. Voltolini, K. Wozniak, A. Yañez, R. Zybert

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


The yields of Λ, Λ, and Ξ-, Ξ+ have been measured close to mid-rapidity in sulphur reactions on a Pb target at 200 GeV/c per nucleon beam momentum. Fully corrected production ratios of Λ Λ, Ξ+ Ξ, Ξ- Λ and Ξ Λ are presented. The ratios have been analysed both in the context of a rapidly disintegrating quark-gluon plasma and a hadronic resonance gas. Our analysis shows that the hadron gas model is sufficient to explain the observed particle yields.

Original languageEnglish (US)
Pages (from-to)433-438
Number of pages6
JournalPhysics Letters B
Issue number3-4
StatePublished - May 19 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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