Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy

Kiselev, Yu. T.; Wilkin, C.; Keshelashvili, I.; Ye, Q. J.; Gebel, R.; Maeda, Y.; Lorentz, B.; Serdyuk, V.; Sibirtsev, A.; Stroeher, Hans; Hejny, V.; Sinitsyna, V. Y.; Wüstner, P.; Trusov, S.; Dymov, S.; Polyanskiy, A.; Mikirtytchiants, S.; Hartmann, M.; Merzliakov, S.; Büscher, M.; Stein, H. J.; Valdau, Yu.; Paryev, E. Ya.; Kacharava, A.; Barsov, S.; Ohm, H.

doi:10.1103/PhysRevC.92.065201

Journal Article

FZJ-2015-07369

Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy

Kiselev, Y. T. ; Hartmann, M. (Corresponding author)FZJ* ; Polyanskiy, A. ; Paryev, E. Y. ; Barsov, S.FZJ* ; Büscher, M.FZJ* ; Dymov, S.FZJ* ; Gebel, R.FZJ* ; Hejny, V.FZJ* ; Kacharava, A.FZJ* ; Keshelashvili, I.FZJ* ; Lorentz, B.FZJ* ; Maeda, Y. ; Merzliakov, S.FZJ* ; Mikirtytchiants, S.FZJ* ; Ohm, H.FZJ* ; Serdyuk, V.FZJ* ; Sibirtsev, A. ; Sinitsyna, V. Y. ; Stein, H. J.FZJ* ; Stroeher, H.FZJ* ; Trusov, S.FZJ* ; Valdau, Y.FZJ* ; Wilkin, C. ; Wüstner, P.FZJ* ; Ye, Q. J.

2015
Inst. Woodbury, NY

Physical review / C 92(6), 065201 (2015) [10.1103/PhysRevC.92.065201]

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Please use a persistent id in citations: http://hdl.handle.net/2128/9582 doi:10.1103/PhysRevC.92.065201

Abstract: The production of non-ϕK+K− pairs by protons at 2.83 GeV kinetic energy on C, Cu, Ag, and Au targets has been investigated by using the COSY-ANKE magnetic spectrometer. The K− momentum dependence of the differential cross section has been measured for laboratory polar angles θK±≤12∘ 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.

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