تقرير
Azimuthal Emission Patterns of $K^{+}$ and of $ K^{-} $ Mesons in Ni + Ni Collisions near the Strangeness Production Threshold
| العنوان: | Azimuthal Emission Patterns of $K^{+}$ and of $ K^{-} $ Mesons in Ni + Ni Collisions near the Strangeness Production Threshold |
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| المؤلفون: | Zinyuk, V., Kang, T. I., Leifels, Y., Herrmann, N., Hong, B., Averbeck, R., Andronic, A., Barret, V., Basrak, Z., Bastid, N., Benabderrahmane, M. L., Berger, M., Buehler, P., Cargnelli, M., Čaplar, R., Carevic, I., Crochet, P., Deppner, I., Dupieux, P., Dželalija, M., Fabbietti, L., Fodor, Z., Gasik, P., Gašparić, I., Grishkin, Y., Hartmann, O. N., Hildenbrand, K. D., Kecskemeti, J., Kim, Y. J., Kirejczyk, M., Kiš, M., Koczon, P., Kotte, R., Lebedev, A., Fèvre, A. Le, Liu, J. L., Lopez, X., Manko, V., Marton, J., Matulewicz, T., Münzer, R., Petrovici, M., Piasecki, K., Rami, F., Reischl, A., Reisdorf, W., Ryu, M. S., Schmidt, P., Schüttauf, A., Seres, Z., Sikora, B., Sim, K. S., Simion, V., ilczyńska, K. Siwek, Smolyankin, V., Suzuki, K., Tyminski, Z., Wagner, P., Widmann, E., Wiśniewski, K., Xiao, Z. G., Yushmanov, I., Zhang, Y., Zhilin, A., Zmeskal, J. |
| سنة النشر: | 2014 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | Azimuthal emission patterns of $K^\pm$ mesons have been measured in Ni + Ni collisions with the FOPI spectrometer at a beam kinetic energy of 1.91 A GeV. The transverse momentum $p_{T}$ integrated directed and elliptic flow of $K^{+}$ and $K^{-}$ mesons as well as the centrality dependence of $p_{T}$ - differential directed flow of $K^{+}$ mesons are compared to the predictions of HSD and IQMD transport models. The data exhibits different propagation patterns of $K^{+}$ and $K^{-}$ mesons in the compressed and heated nuclear medium and favor the existence of a kaon-nucleon in-medium potential, repulsive for $K^{+}$ mesons and attractive for $K^{-}$ mesons. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevC.90.025210 |
| URL الوصول: | http://arxiv.org/abs/1403.1504 |
| رقم الأكسشن: | edsarx.1403.1504 |
| قاعدة البيانات: | arXiv |
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