Analog transitions in [Formula Presented]- and [Formula Presented]-shell nuclei and the isovector part of optical potentials studied by the [Formula Presented] reaction at 35 MeV

G. C. Jon, H. Orihara, T. Niizeki, M. Oura, K. Ishii, A. Terakawa, M. Hosaka, K. Itoh, C. C. Yun, Y. Fujii, T. Nakagawa, K. Miura, H. Ohnuma

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9 Citations (Scopus)

Abstract

Quasielastic [Formula Presented] reactions on [Formula Presented]- and [Formula Presented]-shell nuclei were studied at an incident proton energy of 35 MeV. Differential cross sections for isobaric analog [Formula Presented] (Fermi-type) transitions and their angular distributions were measured in 13 [Formula Presented] target nuclei ranging [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] and [Formula Presented] Pure [Formula Presented] Fermi-type transitions were observed in six of them. As for the other seven nuclei, contributions from mixed [Formula Presented] components or those from unresolved transitions were evaluated by microscopic distorted-wave Born approximation (DWBA) calculations to subtract them from the raw data and extract pure Fermi-type transition strengths. Thus a total of 13 [Formula Presented] angular distributions was fitted by macroscopic DWBA calculations with a Lane-model optical potential to derive systematically the isovector part of the potential. The best-fit parameters for each target are presented. [Formula Presented]-dependent global parameters were obtained from these best-fit parameters by a least-squares fit.

Original languageEnglish
Pages (from-to)900-907
Number of pages8
JournalPhysical Review C - Nuclear Physics
Volume56
Issue number2
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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