Physics Letters B (Apr 2021)
New precise spectroscopy of the hyperfine structure in muonium with a high-intensity pulsed muon beam
- S. Kanda,
- Y. Fukao,
- Y. Ikedo,
- K. Ishida,
- M. Iwasaki,
- D. Kawall,
- N. Kawamura,
- K.M. Kojima,
- N. Kurosawa,
- Y. Matsuda,
- T. Mibe,
- Y. Miyake,
- S. Nishimura,
- N. Saito,
- Y. Sato,
- S. Seo,
- K. Shimomura,
- P. Strasser,
- K.S. Tanaka,
- T. Tanaka,
- H.A. Torii,
- A. Toyoda,
- Y. Ueno
Affiliations
- S. Kanda
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Corresponding author.
- Y. Fukao
- Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Y. Ikedo
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan
- K. Ishida
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- M. Iwasaki
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- D. Kawall
- University of Massachusetts Amherst, 1126 Lederle Graduate Research Tower, Amherst, MA 01003-9337, USA
- N. Kawamura
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- K.M. Kojima
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- N. Kurosawa
- Cryogenic Science Center, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
- Y. Matsuda
- Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- T. Mibe
- Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Y. Miyake
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- S. Nishimura
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan
- N. Saito
- Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- Y. Sato
- Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
- S. Seo
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- K. Shimomura
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- P. Strasser
- Institute of Materials Structure Science, KEK 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- K.S. Tanaka
- Tohoku University, 6-3 Aoba, Sendai, Miyagi 980-8578, Japan
- T. Tanaka
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- H.A. Torii
- School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- A. Toyoda
- Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan; Japan Proton Accelerator Research Complex (J-PARC), 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Graduate University of Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Y. Ueno
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Journal volume & issue
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Vol. 815
p. 136154
Abstract
A hydrogen-like atom consisting of a positive muon and an electron is known as muonium. It is a near-ideal two-body system for a precision test of bound-state theory and fundamental symmetries. The MuSEUM collaboration performed a new precision measurement of the muonium ground-state hyperfine structure at J-PARC using a high-intensity pulsed muon beam and a high-rate capable positron counter. The resonance of hyperfine transition was successfully observed at a near-zero magnetic field, and the muonium hyperfine structure interval of νHFS=4.463302(4)GHz was obtained with a relative precision of 0.9 ppm. The result was consistent with the previous ones obtained at Los Alamos National Laboratory and the current theoretical calculation. We present a demonstration of the microwave spectroscopy of muonium for future experiments to achieve the highest precision.
