Proton-induced knockout (p,2N) reactions on stable nuclei as a tool to determine spectroscopic factors

量子物理学・ナノサイエンス第400回セミナー

概要

Proton-induced knockout reactions provide a direct mean of studying the single particle or cluster structures of target nuclei. In this talk, firstly we review the experimental and theoretical progress in this field. The spectroscopic factors extracted using (p,2N) data at intermediate energies are consisted with those determined using (e,e'p) data, typically within a 15% deviation, when the geometrical parameters are the same as those employed in the (e,e'p) analysis. However, when the goal is to use the (p,2N) reactions as a spectroscopic tool, it is preferable to determine the geometrical parameters in a self-consistent manner. Thus we further performed a calculation using wave functions generated in a relativistic Hartree model. The spectroscopic factors deduced from this self-consistent calculation and from the previous standard calculation using a global optical potential agree with the relevant (e,e'p) results mostly within 15% for light nuclei. This result is encouraging for extending to similar studies of unstable nuclei, for which the properties are not well-known and the parameters for DWIA calculations cannot be pre-determined.

　　　　
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• 量子物理学・ナノサイエンス第400回セミナー

• 東京科学大学理学院・物理学系 ナノサイエンスを拓く量子物理学拠点　共催