Exact Treatment of (π+π⟷N+N^^-) Amplitude and Electromagnetic Structure of Nucleon
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概要
- 論文の詳細を見る
The isovector part of the electromagnetic form factor of the nucleon is investigated starting from an exact treatment of the (π+π⟷N+N^^-) amplitude. It is shown that the experimental data can be reproduced very well (at least for 0>t≳-50μ^2) if the contributions from both correlating and un-correlating two-pion states are rightly included. The mass shift of the ρ-resonance is realized as a result of the coexistence of the correlated and the uncorrelated two-pion contributions. It is also shown that I=L=1 helicity amplitude of the (π+π⟷N+N^^-) process can be determined by the present investigation of the form factors. Related problems, such as the spectral functions of the isovector form factors and the estimate of effective _<p>NN coupling constants, are also discussed.
- 理論物理学刊行会の論文
- 1967-09-25
著者
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KANADA Hiroyuki
Department of Physics, Niigata University
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Watanabe Keiji
Department Of Physics Nagoya University
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Furuichi Susumu
Department Of Physics Rikkyo University
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Furuichi Susumu
Department Of Neurosurgery Yao Tokushukai Hospital
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WATANABE Keiji
Dublin Institute for Advanced Studies School of Theoretical Physics
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Kanada Hiroyuki
Department Of Physics Nagoya University
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Kanada Hiroyuki
Department Of General Education Niigata University
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Watanabe Keiji
Dublin Institute For Advanced Studies : Department Of Physics Nagoya University
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FURUICHI Susumu
Deparment of Physics, Rikkyo University
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WATANABE Keiji
Dublin Institute for Advanced Studies School of Theoretical Physics : Department of Physics, Nagoya University
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