Development of microwave cavities for measurement of muonium hyperfine structure at J-PARC
| Autor: | Minoru Yoshida, Tsutomu Mibe, Akihisa Toyoda, K. Suda, Norihito Saito, M. Iwasaki, S. Seo, Naruhiko Sakamoto, Koichiro Shimomura, Patrick Strasser, K. S. Tanaka, Naritoshi Kawamura, S. Kanda, Takahiro Tanaka, S. Nishimura, O. Kamigaito, Yasuyuki Matsuda, Yuichiro Ueno, H. A. Torii |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Physics - Instrumentation and Detectors Field (physics) 010308 nuclear & particles physics Atomic Physics (physics.atom-ph) Muonium Measure (physics) General Physics and Astronomy FOS: Physical sciences Particle accelerator Instrumentation and Detectors (physics.ins-det) 01 natural sciences High Energy Physics - Experiment Physics - Atomic Physics Magnetic field law.invention Computational physics High Energy Physics - Experiment (hep-ex) law 0103 physical sciences Physics::Accelerator Physics J-PARC 010306 general physics Hyperfine structure Microwave |
| DOI: | 10.48550/arxiv.2104.06663 |
| Popis: | The MuSEUM collaboration is planning measurements of the ground-state hyperfine structure (HFS) of muonium at the Japan Proton Accelerator Research Complex (J-PARC), Materials and Life Science Experimental Facility. The high-intensity beam that will soon be available, the H-line, allows for more precise measurements by one order of magnitude. We plan to conduct two staged measurements. First, we will measure the Mu-HFS in a near-zero magnetic field, and thereafter we will measure it in a strong magnetic field. We have developed two microwave cavities for this purpose. Furthermore, we evaluated the systematic uncertainties from such a fluctuation of microwave fields and confirmed the requirements for the microwave system; we use a microwave field distribution calculated with the finite element method. |
| Databáze: | OpenAIRE |
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