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Design for detecting recycling muon after muon-catalyzed fusion reaction in solid hydrogen isotope target

固体水素ターゲットからミュオン触媒核融合で放出されたミュオンの検出

奥津 賢一*; 山下 琢磨*; 木野 康志*; 中島 良太*; 宮下 湖南*; 安田 和弘*; 岡田 信二*; 佐藤 元泰*; 岡 壽崇  ; 河村 成肇*; 神田 聡太郎*; 下村 浩一郎*; Strasser, P.*; 竹下 聡史*; 反保 元伸*; 土居内 翔伍*; 永谷 幸則*; 名取 寛顕*; 西村 昇一郎*; Pant, A. D.*; 三宅 康博*; 石田 勝彦*

Okutsu, Kenichi*; Yamashita, Takuma*; Kino, Yasushi*; Nakashima, Ryota*; Miyashita, Konan*; Yasuda, Kazuhiro*; Okada, Shinji*; Sato, Motoyasu*; Oka, Toshitaka; Kawamura, Naritoshi*; Kanda, Sotaro*; Shimomura, Koichiro*; Strasser, P.*; Takeshita, Soshi*; Tampo, Motonobu*; Doiuchi, Shogo*; Nagatani, Yukinori*; Natori, Hiroaki*; Nishimura, Shoichiro*; Pant, A. D.*; Miyake, Yasuhiro*; Ishida, Katsuhiko*

水素同位体を利用したミュオン触媒核融合($$mu$$CF)では、核融合によって2.2$$mu$$sの寿命を持つミュオンが再放出され、それが次の標的と新たな核融合を引き起こす。我々は、水素・重水素混合固体から放出されたミュオンを収集して輸送する同軸輸送管を新たに開発し、輸送のための加速電圧などについて検討したので報告する。

A muonic molecule which consists of two hydrogen isotope nuclei (deuteron (d) or tritium (t)) and a muon decays immediately via nuclear fusion and the muon will be released as a recycling muon, and start to find another hydrogen isotope nucleus. The reaction cycle continues until the muon ends up its lifetime of 2.2 $$mu$$s. Since the muon does not participate in the nuclear reaction, the reaction is so called a muon catalyzed fusion ($$mu$$CF). The recycling muon has a particular kinetic energy (KE) of the muon molecular orbital when the nuclear reaction occurs. Since the KE is based on the unified atom limit where distance between two nuclei is zero. A precise few-body calculation estimating KE distribution (KED) is also in progress, which could be compared with the experimental results. In the present work, we observed recycling muons after $$mu$$CF reaction.

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