Polarization of the Recoil Nucleon from the Photoproduction of Pion

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概要

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• The transverse polarization of the recoil proton from γ+p→π^0+p is estimated for E_γ=260, 300, 320, 350, and 400 Mev in a phenomenological way. In § 2 calculation of the polarization is carried out for unpolarized incident particles, where the contribution from the electric quadrupole radiation in the p_<3/2> state is neglected. Here only the experimental angular distributions of γ+p→π^0+p and γ+p→π^++n, and six phase shifts of the pion-nucleon scattering are used as known quantities. Six transition amplitudes of the photopion production, corresponding to s_<1/2>, p_<1/2>, and p_<3/2> final states with isotopic spin 1/2 and 3/2, can be expressed in terms of these known quantities, after we solve six simultaneous quadratic equations. Then 10 to 20% polarization is theoretically expected over a wide range of angles in the center of mass system. § 3 is devoted to review the transition amplitudes obtained in § 2.

• 理論物理学刊行会の論文
• 1960-06-25

著者

• Kawaguchi Masaaki

  Research Institute For Fundamental Physics Kyoto University

• KAWAGUCHI Masaaki

  Research Institute for Fundamental Physics Kyoto University : Department of Physics, Tokyo University of Education

関連論文

• Note on the Decay Interactions of Hyperons and Heavy Mesons
• Note on the Decays of Σ Particles
• Kinematical Investigation of the S-matrix
• Quantum Field Theory of Unstable Particles
• On the Relation between Meson-Nucleon Scattering and Photomeson Production
• Note on the Decay Interactions of Hyperons and Heavy Mesons
• Polarization of the Recoil Nucleon from the Photoproduction of Pion

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