Isovector part of optical potentials studied through analog transitions in the (p, n) reaction at 35 MeV

G. C. Jon, H. Orihara, C. C. Yun, A. Terakawa, K. Itoh, A. Yamamoto, H. Suzuki, H. Mizuno, G. Kamurai, K. Ishii, H. Ohnuma

Research output: Contribution to journalArticlepeer-review

Abstract

Quasielastic (p, n) reactions 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 27 [Formula Presented] target nuclei [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] and [Formula Presented] Pure [Formula Presented] Fermi-type transitions were observed in 23 of them. As for the four light odd-A nuclei, contributions from mixed [Formula Presented] components 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 27 [Formula Presented] angular distributions were obtained, and fitted by macroscopic DWBA calculations with the Lane-model optical potential to derive systematically the isovector part of the potential. The best-fit parameters for each target are presented. The present results combined with our previous analysis on 13 other nuclei in the [Formula Presented] region cover almost the entire mass region. They were used to obtain A-dependent global parameters by least-squares fit.

Original languageEnglish
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume62
Issue number4
DOIs
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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