论文标题

中等对$ξ^ - $生产核的影响($ k^ - $,$ k^+$)反应

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

论文作者

Harada, Toru, Hirabayashi, Yoshiharu

论文摘要

我们使用最佳的Fermi-veraging程序研究了($ k^ - $,$ k^+$)对$ξ^ - $生产的理论上中等影响,该过程描述了核对核对k^+ξ^ - $ $ $ $ $反应条件的核子在核中的Emgy-Shell $ k^-p \ to ot-Energy-Shell $ k^-p \ for themlei of toclei中的反应。 The result shows the strong energy and angular dependence of the in-medium $K^-p\to K^+Ξ^-$ cross section,which affects significantly the shape and magnitude of the production spectrum for $Ξ^-$ hypernuclear states in the ($K^-$, $K^+$) reaction on a nuclear target.The application to the $Ξ^-$ quasi-free production via the ($K^-$, $K^+$) reaction on费米汽油模型还讨论了$^{12} $ c目标。

We study theoretically medium effects on $Ξ^-$ 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 $K^-p\to K^+Ξ^-$ reaction condition in nuclei. The result shows the strong energy and angular dependence of the in-medium $K^-p\to K^+Ξ^-$ cross section,which affects significantly the shape and magnitude of the production spectrum for $Ξ^-$ hypernuclear states in the ($K^-$, $K^+$) reaction on a nuclear target.The application to the $Ξ^-$ 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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