Development of muon detecting system for revealing muon catalyzed fusion elementary processes

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

A muon is one of elementary particles which is known to weight 207 times more than an electron. A nuclear fusion reaction occurs in a muonic molecule which consists of two hydrogen isotope nuclei and a muon because the muon binds more tightly than electron. Since the muon does not directly participate in the fusion reaction, the reaction is called muon catalyzed fusion (CF). The muon released after the reaction is called a "recycling muon", and maintains the molecular orbital information when the muonic molecule formed. Therefore, information of the muon wavefunction can be investigated by observing the energy distribution of the recycling muon. We will report the experimental setup for measuring the energy distribution of the recycling muons after the nuclear reaction.