GIANT-RESONANCES IN A NEUTRON-RICH NUCLEUS

被引：16

作者：

TOHYAMA, M ^{[1
]}

机构：

[1] RIKEN,CYCLOTRON LAB,WAKO,SAITAMA 35101,JAPAN

来源：

PHYSICS LETTERS B | 1994年 / 323卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)91216-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To understand the response of very neutron rich nuclei to external fields, we study the E1 and E2 giant resonances in O-22 using a microscopic model i.e. the time-dependent density-matrix theory (TDDM). TDDM is an extension of the time-dependent Hartree-Fock theory to include two-body correlations and gives us a framework to study both the positions and widths of the giant resonances. It is found that the E1 and E2 strength distributions quite differ from those in stable nuclei due to the existence of excess neutrons.

引用

页码：257 / 261

页数：5

共 18 条

[1] NUCLEAR GROUND-STATE PROPERTIES AND SELF-CONSISTENT CALCULATIONS WITH SKYRME INTERACTION .1. SPHERICAL DESCRIPTION
BEINER, M
FLOCARD, H
VANGIAI, N
QUENTIN, P
[J]. NUCLEAR PHYSICS A, 1975, A238 (01) : 29 - 69
[2] THE STRUCTURE AND REACTIONS OF NEUTRON-RICH NUCLEI
BERTULANI, CA
CANTO, LF
HUSSEIN, MS
[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1993, 226 (06): : 281 - 376
[3] SKYRME-FORCE TIME-DEPENDENT HARTREE-FOCK CALCULATIONS WITH AXIAL SYMMETRY
DAVIES, KTR
KOONIN, SE
[J]. PHYSICAL REVIEW C, 1981, 23 (05): : 2042 - 2061
[4] NONPERTURBATIVE STUDY OF THE DAMPING OF GIANT-RESONANCES IN HOT NUCLEI
DEBLASIO, FV
CASSING, W
TOHYAMA, M
BORTIGNON, PF
BROGLIA, RA
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (11) : 1663 - 1666
[5] NEUTRON-SKIN AND PROTON-SKIN FORMATIONS IN EXOTIC NUCLEI FAR FROM STABILITY
FUKUNISHI, N
OTSUKA, T
TANIHATA, I
[J]. PHYSICAL REVIEW C, 1993, 48 (04): : 1648 - 1655
[6] APPLICATION OF A TIME-DEPENDENT DENSITY-MATRIX FORMALISM .1. SMALL-AMPLITUDE COLLECTIVE MOTIONS
GONG, M
TOHYAMA, M
[J]. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1990, 335 (02): : 153 - 161
[7] TIME-DEPENDENT DENSITY-MATRIX THEORY .2. MASS DISPERSION IN DAMPED NUCLEAR-REACTIONS
GONG, M
TOHYAMA, M
RANDRUP, J
[J]. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1990, 335 (03): : 331 - 340
[8] BETA-DECAY OF O-22
HUBERT, F
DUFOUR, JP
DELMORAL, R
FLEURY, A
JEAN, D
PRAVIKOFF, MS
DELAGRANGE, H
GEISSEL, H
SCHMIDT, KH
HANELT, E
[J]. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1989, 333 (03): : 237 - 246
[9] STRUCTURE OF EXOTIC NEUTRON-RICH NUCLEI
OTSUKA, T
FUKUNISHI, N
SAGAWA, H
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (10) : 1385 - 1388
[10] SELF-CONSISTENT CALCULATIONS OF FINITE TEMPERATURE NUCLEAR RESPONSE FUNCTION
SAGAWA, H
BERTSCH, GF
[J]. PHYSICS LETTERS B, 1984, 146 (3-4) : 138 - 142

← 1 2 →