A schematic model for the study of fragmentation of scissors M1 strength in deformed nuclei

被引:14
作者
Heyde, K
DeCoster, C
Rombouts, S
Freeman, SJ
机构
[1] INST PHYS NUCL,B-9000 GHENT,BELGIUM
[2] UNIV MANCHESTER,SCHUSTER LAB,MANCHESTER M13 9PL,LANCS,ENGLAND
关键词
D O I
10.1016/0375-9474(95)00384-3
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 study a fragmentation model in order to describe the distribution of a collective, scissors-like 1(+) state into a background of deformed two- and four-quasiparticle excitations. The coupling matrix elements for coupling the collective state to the underlying microscopic structures are studied. The fragmentation results are compared to the available data. One-nucleon transfer strength distributions are discussed with reference to the fragmentation of two-quasiparticle configurations. We also point out possible origins for intermediate structure in the fragmentation mechanism.
引用
收藏
页码:30 / 52
页数:23
相关论文
共 52 条
[1]   NEW MAGNETIC DIPOLE EXCITATION MODE STUDIED IN THE HEAVY DEFORMED NUCLEUS GD-156 BY INELASTIC ELECTRON-SCATTERING [J].
BOHLE, D ;
RICHTER, A ;
STEFFEN, W ;
DIEPERINK, AEL ;
IUDICE, NL ;
PALUMBO, F ;
SCHOLTEN, O .
PHYSICS LETTERS B, 1984, 137 (1-2) :27-31
[2]  
BOHR A, 1969, NUCLEAR STRUCTURE, V1
[3]   FUNNY HILLS - SHELL-CORRECTION APPROACH TO NUCLEAR SHELL EFFECTS AND ITS APPLICATIONS TO FISSION PROCESS [J].
BRACK, M ;
JENSEN, AS ;
PAULI, HC ;
STRUTINSKY, VM ;
WONG, CY ;
DAMGAARD, J .
REVIEWS OF MODERN PHYSICS, 1972, 44 (02) :320-+
[4]   DIPOLE STATE IN NUCLEI [J].
BROWN, GE ;
BOLSTERLI, M .
PHYSICAL REVIEW LETTERS, 1959, 3 (10) :472-476
[5]   MAGNETIC DIPOLE SPIN EXCITATIONS IN RARE-EARTH AND ACTINIDE NUCLEI [J].
DECOSTER, C ;
HEYDE, K ;
RICHTER, A .
NUCLEAR PHYSICS A, 1992, 542 (03) :375-409
[6]  
DECOSTER C, 1992, THESIS U GENT
[7]  
ELBEK B, 1969, ADV NUCLEAR PHYSICS, V3
[8]   2-QUASIPROTON CONFIGURATIONS IN DY-164 [J].
FREEMAN, SJ ;
CHAPMAN, R ;
DURELL, JL ;
HOTCHKIS, MAC ;
KHAZAIE, F ;
LISLE, JC ;
MO, JN ;
BRUCE, AM ;
CUNNINGHAM, RA ;
DRUMM, PV ;
WARNER, DD ;
GARRETT, JD .
NUCLEAR PHYSICS A, 1993, 554 (03) :333-361
[9]   2-QUASIPROTON STRUCTURES IN YB-174 [J].
FREEMAN, SJ ;
CHAPMAN, R ;
DURELL, JL ;
HOTCHKIS, MAC ;
KHAZAIE, F ;
LISLE, JC ;
MO, JN ;
BRUCE, AM ;
CUNNINGHAM, RA ;
DRUMM, PV ;
WARNER, DD .
NUCLEAR PHYSICS A, 1993, 552 (01) :10-36
[10]  
FREEMAN SJ, 1990, THESIS U MANCHESTER