New beamlines and future prospects of the J-PARC muon facility

At the J-PARC muon facility (MUSE), new beamlines started operation recently. H-line is a high-intensity pulsed muon beamline for fundamental physics experiments. The first beam of the H-line was delivered to its first branch (H1 area) in January 2022, where a precise measurement of the muonium hype...

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Published in:EPJ Web of conferences 2023, Vol.282, p.1016
Main Authors: Yamazaki, Takayuki, Kawamura, , Naritoshi, Shimomura, Koichiro, Miyake, Yasuhiro, Oishi, Yu, Adachi, Taihei, Strasser, Patrick, Koda, Akihiro, Fujimori, Hiroshi, Yuasa, Takahiro, Ikedo, Yutaka, Kobayashi, Yasuo, Sasaki, Ken-ichi, Mibe, Tsutomu, Ushizawa, Takahiro, Higashino, Yuta, Nagao, Daiki, Aoki, Masaharu, Hase, Kazuya, Kaneko, Satoshi, Tagawa, Ryota, Uematsu, Taichi, Seiya, Yoshihiro, Uetake, Satoshi, Masuda, Takahiro, Tada, Hiroki, Sugiyama, So, Suzuki, Kazuhito
Format: Article
Language:English
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Summary:At the J-PARC muon facility (MUSE), new beamlines started operation recently. H-line is a high-intensity pulsed muon beamline for fundamental physics experiments. The first beam of the H-line was delivered to its first branch (H1 area) in January 2022, where a precise measurement of the muonium hyperfine structure and a search for μ-e conversion will be conducted. Further extension of the second branch of the H-line for a muon g-2/EDM experiment and a transmission muon microscope project is also ongoing. In addition, the second branch of the surface muon beamline (S2 area of the S-line) was opened for a muonium 1S-2S spectroscopy experiment in FY2021. In this paper, the recent upgrade and present status of the J-PARC muon facility and its prospects are presented.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/202328201016