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

Kiselev, Yu. T.; Hartmann, M.; Polyanskiy, A.; Paryev, E. Ya.; Barsov, S.; Büscher, 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.; Ströher, H.; Trusov, S.; Valdau, Yu.; Wilkin, C.; Wüstner, P.; Ye, Q. J.

doi:10.1103/PhysRevC.92.065201

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

Kiselev, Y. T.; Hartmann, M.; Polyanskiy, A.; Paryev, E. Y.; Barsov, S.; Büscher, 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.; Ströher, H.; Trusov, S.; Valdau, Y.; Wilkin, C.; Wüstner, P.; Ye, Q. J.

The production of non-φ 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 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.

Contribution to WWW
http://arxiv.org/abs/1509.04830
Physical Review C 92(2015), 065201
DOI: 10.1103/PhysRevC.92.065201
Cited 6 times in Scopus

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