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arXiv · 2006.15627

Medium effects on $\Xi^-$ production in the nuclear ($K^-$, $K^+$) reaction

Toru Harada·Yoshiharu Hirabayashi
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Abstract

We study theoretically medium effects on $\Xi^-$ production in the ($K^-$, $K^+$) reaction, using the optimal Fermi-averaging procedure which describes the Fermi motion of a nucleon on the on-energy-shell $K^-p\to K^+\Xi^-$ reaction condition in nuclei. The result shows the strong energy and angular dependence of the in-medium $K^-p\to K^+\Xi^-$ cross section,which affects significantly the shape and magnitude of the production spectrum for $\Xi^-$ hypernuclear states in the ($K^-$, $K^+$) reaction on a nuclear target.The application to the $\Xi^-$ quasi-free production via the ($K^-$, $K^+$) reaction on a $^{12}$C target is also discussed in a Fermi gas model.

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Toru Harada, Yoshiharu Hirabayashi. 2020-06-28. Medium effects on $\Xi^-$ production in the nuclear ($K^-$, $K^+$) reaction. https://doi.org/10.1103/physrevc.102.024618

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