Widths of isobaric analog resonances: A microscopic approach

被引：33

作者：

Colo, G

Sagawa, H

Van Giai, N

Bortignon, PF

Suzuki, T

机构：

[1] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[2] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[3] Univ Aizu, Ctr Math Sci, Fukushima 965, Japan

[4] Inst Phys Nucl, Div Phys Theor, F-91406 Orsay, France

[5] Nihon Univ, Coll Humanities & Sci, Dept Phys, Setagaya Ku, Tokyo 156, Japan

来源：

PHYSICAL REVIEW C | 1998年 / 57卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.57.3049

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A self-consistent particle-phonon coupling model is used to investigate the properties of the isobaric analog resonance in Bi-208. It is shown that quantitative agreement with experimental data for the energy and the width can be obtained if the effects of isospin-breaking nuclear forces are included, in addition to Coulomb force effects. A connection between microscopic model predictions and doorway state approaches, which make use of the isovector monopole resonance, is established via a phenomenological ansatz for the optical potential.

引用

页码：3049 / 3054

页数：6

共 14 条

[1]

ADACHI S, 1987, NUCL PHYS A, V462, P61

[2] A MICROSCOPIC THEORY OF GIANT ELECTRIC ISOVECTOR RESONANCES [J].