Beta-Decay Asymmetries in Polarized ^<12>B and ^<12>N, and the G-Parity Nonconservation

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概要

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• The decay asymmetries (Α) in polarized ^<12>B and ^<12>N have been measured as a function of β-ray energy, E. The coefficients a_+^^-, in Α=+^^-P(p/E)(1+a_+^^-E), have been determined to be a_-(^<12>B)=+(0.31±0.06) %/MeV and a_+(^<12>N)=-(0.21±0.07) %/MeV. The experimental value, a_--a_+=(0.52±0.09) %/MeV, is larger than the prediction according to conservation of vector current, (a_--a_+)_<cvc>sime 0.27%/MeV, which includes no second-class current. Thus, the result is in favor of the existence of the second-class induced-tensor current.

• 理論物理学刊行会の論文
• 1976-10-30

著者

• TANIHATA Isao

  Kikuicho-Branch, Advanced Research Institute for Science and Engineering, Waseda University

• TANIHATA Isao

  The Institute of Physical and Chemical Research (RIKEN)

• Tanihata I

  The Institute Of Physical And Chemical Research (riken)

• Tanihata Isao

  Kikuicho-branch Advanced Research Institute For Science And Engineering Waseda University

• Tanihata Isao

  Laboratory Of Nuclear Studies And Department Of Physics Osaka University

• Sugimoto Kenzo

  Laboratory Of Nuclear Studies And Department Of Physics Faculty Of Science Osaka University

• Sugimoto Kenzo

  Laboratory Of Nuclear Studies And Department Of Physics Osaka University

• Isao Tanihata

  RIKEN

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• Attempts in Detection of Neutrons on So-Called Cold Nuclear Fusion
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• Magnetic Moment of F^ : Nuclear Magnetic Resonce by Polarization Following O^(d,n)F^Reaction
• ClF Target in the Molecular Solid State
• Magnetic Moments of Short-Lived β-Radioactive Nuclei, ^B and ^N
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• An Allene-Doped Liquid Argon Ionization Chamber for O and Ne Ions at 100 MeV/n

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