Measurement of the average polarization of12B in the polarized-muon capture by12C: Magnitude of the induced pseudoscalar form factor |
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| Authors: | Y Kuno J Imazato K Nishiyama K Nagamine T Yamazaki T Minamisono |
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| Institution: | 1. Meson Science Laboratory and Department of Physics, Faculty of Science, University of Tokyo, Japan
2. Department of Physics, Osaka University, Osaka, Japan
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| 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 ?2.6 +2.4 , which is almost consistent with the PCAC prediction. |
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