[en] In this paper an optimal state analysis of kaon-nucleon elastic scattering data is presented. It is shown that the optimal state prediction are experimentally satisfied to a surprising accuracy even for a single optimal state description of kaon-nucleon elastic scattering for laboratory momentum higher than 3 GeV/c. The optimal state analysis as an important alternative to the phase shift analysis is presented. (Author)

[en] To explain the results of a P matrix analysis of antiKN scattering data we invoke the effects of one gluon quark antiquark annihilation. The sign of the resulting force is then giving a lower limit on the mass of valence gluons in baryons

No abstract available

[en] Some corrections are studied here to the conventional technique which is used in the extraction of neutron cross section from deuterium data. It is shown that, for the reaction Kn→KnPI, the cross section can be changed substantially when the deuteron corrections are included. (Author)

No abstract available

[en] The cross section for the reaction K^-n→antiKsup(*-)(892)Δ⁰(1232) at 8,25 GeV/c measured in the CERN 2m deuterium bubble chamber is found to be 9,6+-1μb. Comparing it to the cross-section of K⁺p→K⁺⁰Δ⁺⁺ at 8,25 GeV/c, and more generally comparing the energy dependence of the two reactions, it is suggested that this data contradicts the hypothesis of weak exchange degeneracy and rather behaves following absorbed regge trajectory exchange as advocated by Kane and Seidl, although the observed K⁺ and K^- ratio requires something more tha the π, rho and A₂ trajectories exchange

[en] Differential elastic scattering cross sections for Kaon K⁺ with proton p, neutron n, deuteron d and carbon ¹²C at an incident beam energy Lab. E<1 GeV (intermediate energy) were calculated in the eikonal approximation, and compared with experimental data over an angular range from (10-80) degrees. The semi-relativistic optical potentials of the kaon nucleon K⁺ N and kaon nucleus K⁺ A interactions were obtained and interpreted. On the basis of the One-Boson-Exchange (OBE) model, a set of boson parameters suggested by the Julich group were used to get the form of the interacting optical potential Vopt .(r ). In addition, the derived forms of the K⁺ A potential utilizing orbital density distribution of the nucleons in the target-nuclei (shell model), the relativistic effect of kaon beam were studied and found to play an important role. We have used the generalized Yukawa-type meson functions to evaluate the numerical results of the studied potentials.

No abstract available

[en] A review of counter experiments on hypernuclei is given. The experimental techniques used in these experiments together with the results on light hypernuclei are summarized

[en] Given the growing evidence for an exotic S=+1 resonance, seen in kaon, photon and neutrino induced reactions, we reexamine the existing K⁺p and K⁺d database in order to understand how such a state could have been missed in previous studies. The lack of structure in this database implies a width of an MeV or less, assuming a state exists near 1540 MeV