Role of the Nucleon Exchange in the Diffraction Dissociation πN → π(Nπ)
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概要
- 論文の詳細を見る
Properties of the nucleon exchange and the direct nucleon pole terms are studied in the diffraction dissociation πN→π(Nπ). It is shown that contrary to the naive expectation, the nucleon exchange term with the s-channel helicity conserving πN scattering amplitude cannot give the maximum at φ_<GJ>=0 in the φ_<GJ>=0 distribution. The transverse momentum distributions in the lab. frame reflect well the cosθ_<GJ> but not the φ_<GJ>=0 distributions. We need "something" besides the pion exchange term to enhance the backward side, cosθ_<GJ> <0, but it is questionable whether the nucleon exchange term plays the role of "something" completely. Including cross-over phenomena, it is qualitatively examined that the resonance production term plays the role of the "something".
- 理論物理学刊行会の論文
- 1977-01-25
著者
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Minaka Akira
Department Of Physics Kyushu University
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Minaka Akira
Deparment Of Physics Kyushu University
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UEHARA Masayuki
Department of Physics, Saga University
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Uehara Masayuki
Department Of Physics Kyoto University
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SUMIYOSHI Hiroyuki
Department of Physics, Kyushu University
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Sumiyoshi Hiroyuki
Department Of Physics Faculty Of Science Saga University
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SUMIYOSHI Hiroyuki
(Present Address)Matsusho-Gakuen Junior College : Institute for Cosmic Ray Research, University of Tokyo
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