Direct comparison of phase-space distributions of K- and K+ mesons in heavy-ion collisions at SIS energies - Evidence for in-medium modifications of kaons?

K. Wiśniewski, P. Crochet, N. Herrmann, A. Andronic, R. Averbeck, A. Devismes, C. Finck, A. Gobbi, O. Hartmann, K. D. Hildenbrand, P. Koczon, T. Kress, R. Kutsche, Y. Leifels, W. Reisdorf, D. Schüll, J. P. Alard, V. Barret, Z. Basrak, N. BastidI. Belyaev, A. Bendarag, G. Berek, R. Čaplar, N. Cindro, P. Dupieux, M. Dželalija, M. Eskef, Z. Fodor, Y. Grishkin, B. Hong, J. Kecskemeti, Y. J. Kim, M. Kirejczyk, M. Korolija, R. Kotte, M. Kowalczyk, A. Lebedev, K. S. Lee, V. Manko, H. Merlitz, S. Mohren, D. Moisa, W. Neubert, A. Nianine, D. Pelte, M. Petrovici, C. Plettner, F. Rami, B. De Schauenburg, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, A. Somov, M. Stockmeier, G. Stoicea, M. Vasiliev, P. Wagner, D. Wohlfarth, J. T. Yang, I. Yushmanov, A. Zhilin

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65 Citations (Scopus)

Abstract

The ratio of K- to K+-meson yields has been measured in the systems 96Ru + 96Ru at 1.69 A GeV, 96Ru+96Zr at 1.69 A GeV, and 58Ni+58Ni at 1.93 A GeV incident beam kinetic energy. The yield ratio is observed to vary across the measured phase space. Relativistic transport-model calculations indicate that the data are best understood if in-medium modifications of the kaons are taken into account.

Original languageEnglish
Pages (from-to)515-519
Number of pages5
JournalEuropean Physical Journal A
Volume9
Issue number4
DOIs
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Wiśniewski, K., Crochet, P., Herrmann, N., Andronic, A., Averbeck, R., Devismes, A., Finck, C., Gobbi, A., Hartmann, O., Hildenbrand, K. D., Koczon, P., Kress, T., Kutsche, R., Leifels, Y., Reisdorf, W., Schüll, D., Alard, J. P., Barret, V., Basrak, Z., ... Zhilin, A. (2000). Direct comparison of phase-space distributions of K- and K+ mesons in heavy-ion collisions at SIS energies - Evidence for in-medium modifications of kaons? European Physical Journal A, 9(4), 515-519. https://doi.org/10.1007/s100500070008