Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy
| Autor: | Kiselev, Yu. T., Hartmann, M., Polyanskiy, A., Paryev, E. Ya., Barsov, S., Buescher, M., Dymov, S., Gebel, R., Hejny, V., Kacharava, A., Keshelashvili, I., Lorentz, B., Maeda, Y., Merzliakov, S., Mikirtytchiants, S., Ohm, H., Serdyuk, V., Sibirtsev, A., Sinitsyna, V. Y., Stein, H. J., Stroeher, H., Trusov, S., Valdau, Yu., Wilkin, C., Wuestner, P., Ye, Q. J. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.92.065201 |
| Popis: | The production of non-phi K+K- pairs by protons of 2.83 GeV kinetic energy on C, Cu, Ag, and Au targets has been investigated using the COSY-ANKE magnetic spectrometer. The K- momentum dependence of the differential cross section has been measured at small angles over the 0.2--0.9 GeV/c range. The comparison of the data with detailed model calculations indicates an attractive K- -nucleus potential of about -60 MeV at normal nuclear matter density at a mean momentum of 0.5 GeV/c. However, this approach has difficulty in reproducing the smallness of the observed cross sections at low K- momenta. Comment: 7 pages, 5 figures, 1 table |
| Databáze: | arXiv |
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