K^+ production in p-C-collisions at a beam energy 1.2 GeV

Details K^+ production in p-C-collisions at a beam energy 1.2 GeV K^+ production in p-C-collisions at a beam energy 1.2 GeV

1995-08-28

arxiv.org/abs/nucl-th/9508044v1

Physics

Nuclear Physics

Nuclear Theory

Latex 6 pages with 4 figures (eps file)

Scientific paper

The isobar model and the resonance model are applied for the first analysis of the subthreshold $K^+$-meson production in proton-carbon collisions, which was perfomed at GSI at an emission angle of 40 degrees and a bombarding energy of 1.2 GeV. In this study, we focus on the role of the secondary processes $\pi N \to K^+ Y$ in normal nuclear matter density. It turns out that the present approach can reproduce very well both the $\pi^+$- and $K^+$- meson spectra. It is also demonstrated that the different kinds of descriptions for the $\pi N \to K^+ \Lambda$ reactions substantially differentiate the calculated results for the $p A \to K^+ X$ differential cross sections.

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