Muonium Hyperne Structure Measurement in a Zero/High Magnetic Field - PowerPoint PPT Presentation

Muonium Hyper�ne Structure Measurement 
 in a Zero/High Magnetic Field 
 at J-PARC Shoichiro Nishimura / KEK IMSS for the MuSEUM Collaboration

MuSEUM Collaboration MuSEUM | Mu onium S pectroscopy E xperiment U sing M icrowave M. Abe, Y. Fukao, Y. Ikedo, T.Ito, R. Kadono, M. Aoki, N. Kawamura, A. Koda, N. Kurosawa, T. Mibe, D. Tomono Y. Miyake, K. Nagamine, S. Nishimura, T. Ogitsu, N. Saito, K. Sasaki, Y. Sato, K. Shimomura, P. Strasser, M. Sugano, M. K. Kubo A. Toyoda, K. Ueno, H. Yamaguchi, A. Yamamoto, T. Yamazaki, M. Yoshida K. M. Kojima Y. Matsuda, S. Seo, T. Tanaka, H. A. Torii, H. Yamauchi, H. Yasuda E. Torikai K. Kawagoe, J. Tojo, T. Yamanaka, H. Iinuma T. Yoshioka S. Choi, K. Ishida, M. Iwasaki, O. Kamigaito, C. Park S. Kanda, Y. Ueno S. Fukumura, K. S. Tanaka D. Kawall M. Kitaguchi, H. Tada �2 Shoichiro Nishimura/J-PARC Symposium 2019 2019/09/25

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sha1_base64="G4t0/FLdLi68o1rxs/5qjc7wI=">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</latexit> <latexit sha1_base64="G4t0/FLdLi68o1rxs/5qjc7wI=">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</latexit> Muonium HFS Muonium|Bound state of µ + and e − (M e , M μ ) � 40 (1/2, 1/2) � (1/2, − 1/2) � � �� 30 (F, M F ) � � �� Δ ν 12 � 20 (1, 1) � Energy (GHz) � 10 Δ ν � (1, 0) � High Field (HF) � 0 (1, − 1) � ��� 10 − (0, 0) � � �� Δ ν 34 � Zero Field (ZF) � 20 − � �� ( − 1/2, − 1/2) � 30 − ( − 1/2, 1/2) � 40 − 0 0.5 1 1.5 2 2.5 Magnetic Field (T) � Experimental value Δν ν 12 + ν 34 = ∆ ν ZF | 4 463 302.2(14) kHz (310 ppb) ν 12 − ν 34 ∝ µ µ HF | 4 463 302.765(51)(17) kHz ( 12 ppb) µ p Phys. Lett. B 59 (1975) 397-400 ， Phys. Rev. Lett. 82 (1999) 711-714 �3 Shoichiro Nishimura/J-PARC Symposium 2019 2019/09/25

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 Muon g −2 and Mu HFS a µ = g − 2 Muon g −2 • 2 3.7σ discrepancy between theory and experiment • Precision of Exp. value | 0.54 ppm • ����� Goal of new Experiment 
 at J-PARC and FNAL | 
 0.1 ppm • Experimental value is obtained by using 
 Mu HFS result R R ≡ ω a λ ≡ µ µ a µ = λ − R ω p µ p g −2 storage ring Mu HFS measurement �4 Shoichiro Nishimura/J-PARC Symposium 2019 2019/09/25

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