Quasi-free(K-,K+)Reactions in Nuclear Emulsion (ハイペロン-核子相互作用とその関連する話題)

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概要

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• A study of 1.66 GeV/c K^- beam induced (K^-, K^+) reactions in the nuclear emulsion target is presented. We have identified 797 (K^-, K^+) reaction vertices (p_<K^+>≤1 GeV/c). These events are classified into several categories by the shapes of emitted track at their stopped points. While the quasi free process, K^-(p) →K^+Ξ^-, is a dominant process for p_<K^+>≤1 GeV/c, the probability of Ξ^- emission from the reaction vertex is found to be 70±4%. From this value, we have estimated the mean free path of Ξ^- in a nucleus to be 4.0^<+1.1>_<-0.8> fm by assuming a simple model of uniform nuclear matter.

• 素粒子論グループ 素粒子研究編集部の論文
• 1996-11-20

著者

• 安田 仲宏

  東邦大理

関連論文

• Quasi-free(K-,K+)Reactions in Nuclear Emulsion (ハイペロン-核子相互作用とその関連する話題)

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