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

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Abstract

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
Volume327
Issue number3-4
DOIs
StatePublished - May 19 1994

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Andersen, E., Blaes, R., Brom, J. M., Caines, H. L., Cherney, M., de la Cruz, B., Fernández, C., Garabatos, C., Garzón, J. A., Geist, W., Greiner, D. E., Gruhn, C. R., Hafidouni, M., Hill, A., Hrubec, J., Jones, P. G., Judd, E. G., Kuipers, J. P. M., Ladrem, M., ... Zybert, R. (1994). Production of Λ, Λ, and Ξ-, Ξ+ particles in S+Pb collisions at 200 GeV/c per nucleon. Physics Letters B, 327(3-4), 433-438. https://doi.org/10.1016/0370-2693(94)90749-8