THE ROLE OF 1P1H-CIRCLE-TIMES-PHONON GROUND-STATE CORRELATIONS IN THE ISOSCALAR EO EXCITATIONS OF MAGIC NUCLEI

被引：21
作者：
KAMERDZHIEV, S
TERTYCHNY, G
SPETH, J
WAMBACH, J
机构：
[1] OBNINSK PHYS & POWER ENGN INST, OBNINSK 249020, RUSSIA
[2] UNIV BONN, INST THEORET KERNPHYS, D-53115 BONN, GERMANY
[3] UNIV ILLINOIS, DEPT PHYS, URBANA, IL 61801 USA
来源：
NUCLEAR PHYSICS A | 1994年 / 577卷 / 3-4期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0375-9474(94)90937-7
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：
The isoscalar E0 strength functions in Ca-40, Ca-48, (208)pb and for the unstable nucleus Ni-56, calculated within an approach which incorporates RPA configurations including the single-particle continuum as well as complex 1p1h circle times phonon configurations. New effects due to a consistent treatment of ground-state correlations are found. We obtain appreciable E0 strength in the low-energy region for Pb-208 and Ni-56. In Ca-40 the effect is so strong that the strength is very fragmented. Reasonable agreement with available experiments is obtained for Pb-208 including the width.
引用
收藏
页码：641 / 652
页数：12
相关论文
共 26 条
[1]   SUM-RULES IN EXTENDED RPA THEORIES [J].
ADACHI, S ;
LIPPARINI, E .
NUCLEAR PHYSICS A, 1988, 489 (03) :445-460
[2]   EXCITATION OF GIANT MULTIPOLE RESONANCES THROUGH INELASTIC-SCATTERING [J].
BERTRAND, FE .
ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1976, 26 :457-509
[3]   DAMPING OF SINGLE-PARTICLE STATES AND GIANT RESONANCES IN PB-208 [J].
BERTSCH, GF ;
BORTIGNON, PF ;
BROGLIA, RA ;
DASSO, CH .
PHYSICS LETTERS B, 1979, 80 (03) :161-165
[4]   NUCLEAR COMPRESSIBILITIES [J].
BLAIZOT, JP .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1980, 64 (04) :171-248
[5]   EXPERIMENTAL-DETERMINATION OF MONOPOLE STRENGTH IN CA-40 BETWEEN 10 AND 20 MEV EXCITATION-ENERGY [J].
BRANDENBURG, S ;
DELEO, R ;
DRENTJE, AG ;
HARAKEH, MN ;
SAKAI, H ;
VANDERWOUDE, A .
PHYSICS LETTERS B, 1983, 130 (1-2) :9-13
[6]   DECAY OF THE ISOSCALAR GIANT MONOPOLE RESONANCE IN PB-208 [J].
BRANDENBURG, S ;
BORGHOLS, WTA ;
DRENTJE, AG ;
EKSTROM, LP ;
HARAKEH, MN ;
VANDERWOUDE, A ;
HAKANSON, A ;
NILSSON, L ;
OLSSON, N ;
PIGNANELLI, M ;
DELEO, R .
NUCLEAR PHYSICS A, 1987, 466 (01) :29-69
[7]   DAMPING PROPERTIES OF THE BREATHING MODE IN PB-208 [J].
COLO, G ;
BORTIGNON, PF ;
VANGIAI, N ;
BRACCO, A ;
BROGLIA, RA .
PHYSICS LETTERS B, 1992, 276 (03) :279-284
[8]  
CRUS MTF, 1992, PHYS REV C, V46, P1132
[9]   THE NUCLEAR RESPONSE WITHIN EXTENDED RPA THEORIES [J].
DROZDZ, S ;
NISHIZAKI, S ;
SPETH, J ;
WAMBACH, J .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1990, 197 (01) :1-65
[10]  
ENDT PM, 1990, NUCL PHYS A, V521, P624
123