Backward Angle Anomaly in Alpha-Nucleus Scattering and Parity-Dependent Optical Model

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概要

• 論文の詳細を見る

• An extended optical potential model is proposed, which has a parity-dependent part in the nuclear surface region. Backward angle anomaly in the differential cross section appearing in the α-particle scattering on the nuclei in the calcium region is analyzed systematically by this model. It is shown that the scattering amplitudes of surface-grazing partial waves superposed by the parity-dependent potential are summed up coherently at backward angles to give the backward rising of the differential cross section. The (∝-Ca and -Ar scattering with an incident energy near 20∼30 MeV are analyzed and a fairly good fit is obtained. The gross behavior of a broad peak in the excitation function at an extreme back angle is reproduced with an energy dependence of the parity-dependent part and it is shown that this broad peak is brought about by a coherent contribution of the additional amplitudes in some surface partial waves.

• 理論物理学刊行会の論文
• 1975-04-25

著者

• 大久保 茂男

  高知女子大学生活科学部環境理学科

• OHKUBO Shigeo

  Department of Applied Science and Environment, Kochi Women's University

• NAGATA Sinobu

  Department of Physics, Kyoto University

• Nagata Sinobu

  Department Of Applied Physics Faculty Of Engineering Miyazaki University

• Ohkubo Shigeo

  Kochi Women's University

• Ohkubo Shigeo

  Department Of Applied Science And Environment Kochi Women's University

• KONDO Yosio

  Department of Education, Kyoto Women's University

• Kondo Yosio

  Research Institute For Fundamental Physics Kyoto University

• Kondo Yosio

  Department Of Education Kyoto Women's University

• TANIMURA Osamu

  Department of Physics and Atomic Energy Research Institute, Nihon University

• Tanimura Osamu

  Department Of Physics And Atomic Energy Research Institute Nihon University

• KONDO Yosio

  Research Institute for Fundamental Physics, Kyoto University

• KONDO Yosio

  Department of Physics, Kyoto University

• OHKUBO Shigeo

  Department of Physics, Kyoto University /Department of Physics and Atomic Energy Research Institute, Nihon University

• TANIMURA Osamu

  Faculty of General Educations, Kanazawa University

• KONDO Yoshihiko

  Department of Physics, Kochi University

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