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

Takayuki Yamazaki; , Naritoshi Kawamura; Koichiro Shimomura; Yasuhiro Miyake; Yu Oishi; Taihei Adachi; Patrick Strasser; Akihiro Koda; Hiroshi Fujimori; Takahiro Yuasa; Yutaka Ikedo; Yasuo Kobayashi; Ken-ichi Sasaki; Tsutomu Mibe; Takahiro Ushizawa; Yuta Higashino; Daiki Nagao; Masaharu Aoki; Kazuya Hase; Satoshi Kaneko; Ryota Tagawa; Taichi Uematsu; Yoshihiro Seiya; Satoshi Uetake; Takahiro Masuda; Hiroki Tada; So Sugiyama; Kazuhito Suzuki

doi:10.1051/epjconf/202328201016

All issues

Volume 282 (2023)

EPJ Web Conf., 282 (2023) 01016

Abstract

Open Access

Issue		EPJ Web Conf. Volume 282, 2023 8^th International Symposium on Symmetries in Subatomic Physics (SSP 2022)


Article Number		01016
Number of page(s)		5
DOI		https://doi.org/10.1051/epjconf/202328201016
Published online		03 April 2023

EPJ Web of Conferences 282, 01016 (2023)
https://doi.org/10.1051/epjconf/202328201016

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

Takayuki Yamazaki¹^*, , Naritoshi Kawamura¹, Koichiro Shimomura¹, Yasuhiro Miyake¹, Yu Oishi¹, Taihei Adachi¹, Patrick Strasser¹, Akihiro Koda¹, Hiroshi Fujimori¹, Takahiro Yuasa¹, Yutaka Ikedo¹, Yasuo Kobayashi¹, Ken-ichi Sasaki¹, Tsutomu Mibe¹, Takahiro Ushizawa², Yuta Higashino³, Daiki Nagao³, Masaharu Aoki³, Kazuya Hase⁴, Satoshi Kaneko⁴, Ryota Tagawa⁴, Taichi Uematsu⁴, Yoshihiro Seiya⁴, Satoshi Uetake⁵, Takahiro Masuda⁵, Hiroki Tada⁶, So Sugiyama⁶ and Kazuhito Suzuki⁶

¹ High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan
² The Graduate University for Advanced Studies (SOKENDAI), Ibaraki 305-0801, Japan
³ Osaka University, Osaka 560-0043, Japan
⁴ Osaka Metropolitan University, Osaka 558-8585, Japan
⁵ Okayama University, Okayama 700-8530, Japan
⁶ Nagoya University, Nagoya 464-8601, Japan

^* Corresponding author: takayuki@post.kek.jp

Published online: 3 April 2023

Abstract

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.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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