arXiv:nucl-th/9608017·v1·Nuclear Theory
K^+ momentum spectrum from (K^-,K^+) reactions in intranuclear cascade model
Y. Nara(1) A. Ohnishi(1)(2) · T. Harada(3) · A. Engel(4) ((1) Department of Physics, Faculty of Science, Hokkaido University, Sapporo, Japan, (2) Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, CA, USA, (3) Department of Social Information, Sapporo Gakuin University, Ebetsu, Japan, (4) Department of Physics, Kyoto University, Kyoto, Japan)
Abstract
In a framework of intranuclear cascade (INC) type calculation, we study a momentum spectrum in reactions \KK at a beam momentum of 1.65 GeV/c. INC model calculations are compared with the relativistic impulse approximation (RIA) calculations to perform the detailed study of the reaction mechanism. We find that the INC model can reproduce the experimental data on various targets. Especially, in the low-momentum region, the forward-angle cross sections of the reaction on from light to heavy targets are consistently explained with the two-step strangeness exchange and production processes with various intermediate mesons, and , and productions and their decay into . In the two-step processes, inclusion of meson and hyperon resonances is found to be essential.
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