TY - JOUR

T1 - Isovector part of optical potentials studied through analog transitions in the (p, n) reaction at 35 MeV

AU - Jon, G. C.

AU - Orihara, H.

AU - Yun, C. C.

AU - Terakawa, A.

AU - Itoh, K.

AU - Yamamoto, A.

AU - Suzuki, H.

AU - Mizuno, H.

AU - Kamurai, G.

AU - Ishii, K.

AU - Ohnuma, H.

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevC.62.044609

DO - 10.1103/PhysRevC.62.044609

M3 - Article

AN - SCOPUS:85035304369

SN - 0556-2813

VL - 62

SP - 5

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

ER -