Effects of the ground state correlations on the structure of vibrational states

被引:5
作者
Karadjov, D [1 ]
Voronov, VV
Catara, F
Grinberg, M
Severyukhin, AP
机构
[1] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1784 Sofia, Bulgaria
[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia
[3] Univ Catania, Dipartmento Fis, Catania, Italy
[4] Ist Nazl Fis Nucl, I-95129 Catania, Italy
基金
俄罗斯基础研究基金会;
关键词
extended random phase approximation; vibrational states; charge transition density; quasiparticle phonon model calculation;
D O I
10.1016/S0375-9474(98)00563-6
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 method to treat the ground state correlations beyond the RPA is presented. A set of nonlinear equations taking into account effects of the ground state correlations on the pairing and phonon-phonon coupling is derived. The influence of such correlations on the properties of the vibrational states in spherical nuclei is studied. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:259 / 271
页数:13
相关论文
共 35 条
[1]  
Bertsch G. F., 1975, Physics Reports. Physics Letters Section C, V18c, P125, DOI 10.1016/0370-1573(75)90003-4
[2]  
Bohr A., 1998, Nuclear Structure, Volume 2: Nuclear Deformations, V2
[3]   Towards a self-consistent random-phase approximation for Fermi systems [J].
Catara, F ;
Piccitto, G ;
Sambataro, M ;
VanGiai, N .
PHYSICAL REVIEW B, 1996, 54 (24) :17536-17546
[4]   GROUND-STATE CORRELATIONS BEYOND RPA [J].
CATARA, F ;
DANG, ND ;
SAMBATARO, M .
NUCLEAR PHYSICS A, 1994, 579 (1-2) :1-12
[5]   AN EXTENSION OF RANDOM PHASE APPROXIMATION [J].
DAPROVIDENCIA, J .
NUCLEAR PHYSICS A, 1968, A108 (03) :589-+
[6]   NUCLEAR CHARGE-DENSITY-DISTRIBUTION PARAMETERS FROM ELASTIC ELECTRON-SCATTERING [J].
DEVRIES, H ;
DEJAGER, CW ;
DEVRIES, C .
ATOMIC DATA AND NUCLEAR DATA TABLES, 1987, 36 (03) :495-536
[7]   Self consistent RPA for superfluid Fermi systems [J].
Dukelsky, J ;
Schuck, P .
PHYSICS LETTERS B, 1996, 387 (02) :233-238
[8]  
FAYANS SA, 1979, NUCL PHYS A, V317, P424, DOI 10.1016/0375-9474(79)90490-1
[9]   ELECTRON-SCATTERING AND NUCLEAR-STRUCTURE [J].
FROIS, B ;
PAPANICOLAS, CN .
ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1987, 37 :133-176
[10]   EXTENDED BOSON APPROXIMATION IN THEORY OF NUCLEAR STRUCTURE [J].
HARA, KJ .
PROGRESS OF THEORETICAL PHYSICS, 1964, 32 (01) :88-&