EPJ Web of Conferences (Jan 2019)
New precise measurements of muonium hyperfine structure at J-PARC MUSE
- Strasser P.,
- Abe M.,
- Aoki M.,
- Choi S.,
- Fukao Y.,
- Higashi Y.,
- Higuchi T.,
- Iinuma H.,
- Ikedo Y.,
- Ishida K.,
- Ito T.,
- Ito T. U.,
- Iwasaki M.,
- Kadono R.,
- Kamigaito O.,
- Kanda S.,
- Kawagoe K.,
- Kawall D.,
- Kawamura N.,
- Kitaguchi M.,
- Koda A.,
- Kojima K. M.,
- Kubo K.,
- Matama M.,
- Matsuda Y.,
- Matsudate Y.,
- Mibe T.,
- Miyake Y.,
- Mizutani T.,
- Nagamine K.,
- Nishimura S.,
- Ogitsu T.,
- Saito N.,
- Sasaki K.,
- Seo S.,
- Shimizu H. M.,
- Shimomura K.,
- Suehara T.,
- Tajima M.,
- Tanaka K. S.,
- Tanaka T.,
- Tojo J.,
- Tomono D.,
- Torii H. A.,
- Torikai E.,
- Toyoda A.,
- Tsutsumi Y.,
- Ueno K.,
- Ueno Y.,
- Yagi D.,
- Yamamoto A.,
- Yamanaka T.,
- Yamazaki T.,
- Yasuda H.,
- Yoshida M.,
- Yoshioka T.
Affiliations
- Strasser P.
- High Energy Accelerator Research Organization (KEK)
- Abe M.
- High Energy Accelerator Research Organization (KEK)
- Aoki M.
- Department of Physics, Osaka University
- Choi S.
- Department of Physics, Seoul National University
- Fukao Y.
- High Energy Accelerator Research Organization (KEK)
- Higashi Y.
- Graduate School of Arts and Sciences, University of Tokyo
- Higuchi T.
- Graduate School of Arts and Sciences, University of Tokyo
- Iinuma H.
- Ibaraki University, College of Science
- Ikedo Y.
- High Energy Accelerator Research Organization (KEK)
- Ishida K.
- RIKEN
- Ito T.
- Department of Physics, Kyushu University
- Ito T. U.
- Advanced Science Research Center, Japan Atomic Energy Agency (JAEA)
- Iwasaki M.
- RIKEN
- Kadono R.
- High Energy Accelerator Research Organization (KEK)
- Kamigaito O.
- RIKEN
- Kanda S.
- RIKEN
- Kawagoe K.
- Department of Physics, Kyushu University
- Kawall D.
- Physics Department, University of Massachusetts Amherst
- Kawamura N.
- High Energy Accelerator Research Organization (KEK)
- Kitaguchi M.
- Department of Physics, Nagoya University
- Koda A.
- High Energy Accelerator Research Organization (KEK)
- Kojima K. M.
- TRIUMF
- Kubo K.
- International Christian University (ICU)
- Matama M.
- Department of Physics, Kyushu University
- Matsuda Y.
- Graduate School of Arts and Sciences, University of Tokyo
- Matsudate Y.
- Graduate School of Arts and Sciences, University of Tokyo
- Mibe T.
- High Energy Accelerator Research Organization (KEK)
- Miyake Y.
- High Energy Accelerator Research Organization (KEK)
- Mizutani T.
- Graduate School of Arts and Sciences, University of Tokyo
- Nagamine K.
- High Energy Accelerator Research Organization (KEK)
- Nishimura S.
- High Energy Accelerator Research Organization (KEK)
- Ogitsu T.
- High Energy Accelerator Research Organization (KEK)
- Saito N.
- High Energy Accelerator Research Organization (KEK)
- Sasaki K.
- High Energy Accelerator Research Organization (KEK)
- Seo S.
- Graduate School of Arts and Sciences, University of Tokyo
- Shimizu H. M.
- Department of Physics, Nagoya University
- Shimomura K.
- High Energy Accelerator Research Organization (KEK)
- Suehara T.
- Department of Physics, Kyushu University
- Tajima M.
- Graduate School of Arts and Sciences, University of Tokyo
- Tanaka K. S.
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University
- Tanaka T.
- Tojo J.
- Department of Physics, Kyushu University
- Tomono D.
- Research Center for Nuclear Physics (RCNP), Osaka University
- Torii H. A.
- Radioisotope Laboratory, Department of Chemistry, School of Science, The University of Tokyo
- Torikai E.
- Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
- Toyoda A.
- High Energy Accelerator Research Organization (KEK)
- Tsutsumi Y.
- Department of Physics, Kyushu University
- Ueno K.
- High Energy Accelerator Research Organization (KEK)
- Ueno Y.
- Graduate School of Arts and Sciences, University of Tokyo
- Yagi D.
- Graduate School of Arts and Sciences, University of Tokyo
- Yamamoto A.
- High Energy Accelerator Research Organization (KEK)
- Yamanaka T.
- Department of Physics, Kyushu University
- Yamazaki T.
- High Energy Accelerator Research Organization (KEK)
- Yasuda H.
- Yoshida M.
- High Energy Accelerator Research Organization (KEK)
- Yoshioka T.
- Department of Physics, Kyushu University
- DOI
- https://doi.org/10.1051/epjconf/201919800003
- Journal volume & issue
-
Vol. 198
p. 00003
Abstract
High precision measurements of the ground state hyperfine structure (HFS) of muonium is a stringent tool for testing bound-state quantum electrodynamics (QED) theory, determining fundamental constants of the muon magnetic moment and mass, and searches for new physics. Muonium is the most suitable system to test QED because both theoretical and experimental values can be precisely determined. Previous measurements were performed decades ago at LAMPF with uncertainties mostly dominated by statistical errors. At the J-PARC Muon Science Facility (MUSE), the MuSEUM collaboration is planning complementary measurements of muonium HFS both at zero and high magnetic field. The new high-intensity muon beam that will soon be available at H-Line will provide an opportunity to improve the precision of these measurements by one order of magnitude. An overview of the different aspects of these new muonium HFS measurements, the current status of the preparation for high-field measurements, and the latest results at zero field are presented.
