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Measurement of the average polarization of12B in the polarized-muon capture by12C: Magnitude of the induced pseudoscalar form factor

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Zeitschrift für Physik A Atomic Nuclei

Abstract

The average polarization of the nucleus12B (bound state) produced in the polarized-muon capture reaction12C(μ −,v μ )12B was measured by the muon spin resonance method in a pulsed muon beam. The polarization of12B was maintained completely under a magnetic field of 3 kG in a Grafoil target. After the observed result was corrected for the contribution from the excited states of12B, Pav (ground state) was deduced to be 0.462±0.053. This result yieldsg P /g A =10.1 +2.4−2.6 , which is almost consistent with the PCAC prediction.

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Authors and Affiliations

  1. Meson Science Laboratory and Department of Physics, Faculty of Science, University of Tokyo, Japan

    Y. Kuno, J. Imazato, K. Nishiyama, K. Nagamine & T. Yamazaki

  2. Department of Physics, Osaka University, Osaka, Japan

    T. Minamisono

Authors
  1. Y. Kuno
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  2. J. Imazato
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  3. K. Nishiyama
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  4. K. Nagamine
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  5. T. Yamazaki
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  6. T. Minamisono
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Additional information

The authors would like to express their sincere thanks to the members of the Meson Science Laboratory for their help, to Professor T. Nishikawa, director of KEK, to Professor H. Sasaki and to the staff of Booster Synchrotron Utilization Facility of KEK for their kind hospitalities. They are grateful to Dr. Y. Nojiri and the other members of the Van de Graaff Accelerator laboratory at Osaka University for their collaboration in the implantation experiment and for their stimulating discussions and to Professors M. Morita, H. Ohtsubo and K. Kubodera for helpful discussions on theoretical aspects. They are indebted to Prof. H. Yasuoka, Drs. Y. Kitaoka and M. Takigawa for the development of the rf power source and to Mr. F. Shimokoshi for the development of the multi-stop TDC system. This work is partially supported by the Grand-in-Aid of the Ministry of Education, Science and Culture.

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Kuno, Y., Imazato, J., Nishiyama, K. et al. Measurement of the average polarization of12B in the polarized-muon capture by12C: Magnitude of the induced pseudoscalar form factor. Z. Physik A - Atomic Nuclei 323, 69–82 (1986). https://doi.org/10.1007/BF01294556

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  • DOI: https://doi.org/10.1007/BF01294556

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