K^+ momentum spectrum from (K^-,K^+) reactions in intranuclear cascade model

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 $(K^{-},K^{+})$ reaction on from light to heavy targets are consistently explained with the two-step strangeness exchange and production processes with various intermediate mesons, and $\varphi$, $a_0$ and $f_0$ productions and their decay into $K^{+}{K}^{-}$. In the two-step processes, inclusion of meson and hyperon resonances is found to be essential.

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References in corpus (3)

• Analysis of the (N,xN') reactions by quantum molecular dynamics plus statistical decay model
• Nucleon Flow and Fragment Flow in Heavy Ion Reactions
• Momentum distribution of fragments in heavy ion reactions: Dependence on the stochastic collision process

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