Published November 28, 1988
| Version v1
Journal article
Sum rules in extended RPA theories
Description
Different moments mk of the excitation strength function are studied in the framework of the second RPA and of the extended RPA in which 2p2h correlations are explicitly introduced into the ground state by using first-order perturbation theory. Formal properties of the equations of motion concerning sum rules are derived and compared with those exhibited by the usual 1p1h RPA. The problem of the separation of the spurious solutions in extended RPA calculations is also discussed. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics, A
- Journal Volume
- 489
- Journal Issue
- 3
- Series
- Nucl. Phys., A.
- Journal Page Range
- 445-460
- ISSN
- 0375-9474
- CODEN
- NUPAB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 20021076
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- COMMUTATORS; CORRELATIONS; EQUATIONS OF MOTION; EXCITATION; EXPECTATION VALUE; E2-TRANSITIONS; GROUND STATES; MATRICES; NUCLEAR STRUCTURE; OXYGEN 16; PARTICLE-HOLE MODEL; PERTURBATION THEORY; RANDOM PHASE APPROXIMATION; ROTATIONAL STATES; STRENGTH FUNCTIONS; SUM RULES
- Descriptors DEC
- DIFFERENTIAL EQUATIONS; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EQUATIONS; EVEN-EVEN NUCLEI; EXCITED STATES; FUNCTIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MULTIPOLE TRANSITIONS; NUCLEAR MODELS; NUCLEI; OXYGEN ISOTOPES; PARTIAL DIFFERENTIAL EQUATIONS; QUANTUM OPERATORS; STABLE ISOTOPES