Direct comparison of phase-space distributions of K<sup>-</sup> and K<sup>+</sup> mesons in heavy-ion collisions at SIS energies -- evidence for in-medium modifications of kaons?

Wisniewski, 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.; Bastid, N.; Belyaev, I.; Benderag, A.; Berek, G.; Caplar, R.; Cindro, N.; Dupieux, P.; Dzelalija, M.; Eskef, M.; Fodor, Z.; Grishkin, Y.; Hong, B.; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Korolija, M.; Kotte, R.; Kowalczyk, M.; Lebedev, A.; Lee, K. S.; Manko, V.; Merlitz, H.; Mohren, S.; Moisa, D.; Neubert, W.; Nianine, A.; Pelte, D.; Petrovici, M.; Plettner, C.; Rami, F.; Schauenburg, B. de; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczynska, K.; Smolyankin, V.; Somov, A.; Stockmeier, M.; Stoicea, G.; Vasiliev, M.; Wagner, P.; Wohlfarth, D.; Yang, J. T.; Yushmanov, I.; Zhilin, A.

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?

Wisniewski, 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.; Bastid, N.; Belyaev, I.; Benderag, A.; Berek, G.; Caplar, R.; Cindro, N.; Dupieux, P.; Dzelalija, M.; Eskef, M.; Fodor, Z.; Grishkin, Y.; Hong, B.; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Korolija, M.; Kotte, R.; Kowalczyk, M.; Lebedev, A.; Lee, K. S.; Manko, V.; Merlitz, H.; Mohren, S.; Moisa, D.; Neubert, W.; Nianine, A.; Pelte, D.; Petrovici, M.; Plettner, C.; Rami, F.; de Schauenburg, B.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczynska, K.; Smolyankin, V.; Somov, A.; Stockmeier, M.; Stoicea, G.; Vasiliev, M.; Wagner, P.; Wohlfarth, D.; Yang, J. T.; Yushmanov, I.; Zhilin, A.

The ratio of K^- and K⁺ meson yields has been measured in the systems ⁹⁶Ru+⁹⁶Ru at 1.69 AGeV, ⁹⁶Ru+⁹⁶Zr at 1.69 AGeV, and ⁵⁸Ni+⁵⁸Ni at 1.93 AGeV 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.

Keywords: heavy-ion reactions; strange mesons; in-medium effects

The European Physical Journal A 9 (2000) 515

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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?

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?

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?

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?