PYGMY DIPOLE RESONANCES IN THE CALCIUM ISOTOPES

被引：71

作者：

CHAMBERS, J

ZAREMBA, E

ADAMS, JP

CASTEL, B

机构：

[1] Department of Physics, Queen's University, Kingston

[2] Los Alamos National Laboratory, Los Alamos

来源：

PHYSICAL REVIEW C | 1994年 / 50卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.50.R2671

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：

We present microscopic density functional theory calculations of the total dipole absorption cross sections of the even-A calcium isotopes from Ca40 through Ca48. The results reveal the onset of a collective dipole oscillation occurring at low energy and decoupled from the giant dipole resonance. The radial density fluctuations associated with this low-lying mode have the character of the pygmy dipole resonance predicted to exist in neutron rich nuclei. © 1994 The American Physical Society.

引用

页码：R2671 / R2674

页数：4

共 21 条

[11] 3-FLUID HYDRODYNAMICAL MODEL OF NUCLEI [J].

MOHAN, R ;

DANOS, M ;

BIEDENHARN, LC .

PHYSICAL REVIEW C, 1971, 3 (05) :1740-+

[12] THE PHOTONUCLEAR CROSS-SECTIONS OF CA-48 [J].

OKEEFE, GJ ;

THOMPSON, MN ;

ASSAFIRI, YI ;

PYWELL, RE ;

SHODA, K .

NUCLEAR PHYSICS A, 1987, 469 (02) :239-252

[13]

Parr R. G., 1994, INT SERIES MONOGRAPH

[14]

PETKOV IZ, 1991, NUCLEAR DENSITY FUNC

[15] NUCLEAR RESPONSE IN CONTINUUM [J].

SHLOMO, S ;

BERTSCH, G .

NUCLEAR PHYSICS A, 1975, A243 (03) :507-518

[16] LINEAR-RESPONSE THEORY WITHIN THE DENSITY-FUNCTIONAL FORMALISM - APPLICATION TO ATOMIC POLARIZABILITIES [J].

STOTT, MJ ;

ZAREMBA, E .

PHYSICAL REVIEW A, 1980, 21 (01) :12-23

[17] NEW TYPE OF DIPOLE VIBRATION IN NUCLEI [J].

SUZUKI, Y ;

IKEDA, K ;

SATO, H .

PROGRESS OF THEORETICAL PHYSICS, 1990, 83 (02) :180-184

[18] DETERMINATION OF THE DENSITY DISTRIBUTION AND THE CORRELATION OF HALO NEUTRONS IN LI-11 [J].

TANIHATA, I ;

KOBAYASHI, T ;

SUZUKI, T ;

YOSHIDA, K ;

SHIMOURA, S ;

SUGIMOTO, K ;

MATSUTA, K ;

MINAMISONO, T ;

CHRISTIE, W ;

OLSON, D ;

WIEMAN, H .

PHYSICS LETTERS B, 1992, 287 (04) :307-311

[19] EQUATION OF STATE OF DENSE ASYMMETRIC NUCLEAR-MATTER [J].

TERHAAR, B ;

MALFLIET, R .

PHYSICAL REVIEW LETTERS, 1987, 59 (15) :1652-1655

[20] STUDY OF PHOTONEUTRON CONTRIBUTION TO GIANT DIPOLE RESONANCE OF S-D SHELL NUCLEI [J].

VEYSSIERE, A ;

BEIL, H ;

BERGERE, R ;

CARLOS, P ;

LEPRETRE, A ;

DEMINIAC, A .

NUCLEAR PHYSICS A, 1974, A227 (03) :513-540

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