Published December 1990
| Version v1
Journal article
Approximate treatment of the continuum
Creators
- 1. Institute of Nuclear Research of the Hungarian Academy of Sciences, H-4001 Debrecen (Hungary)
- 2. Research Institute of Physics, S-10405 Stockholm (Sweden)
Description
Pole expansions of the Green function (Berggren and Mittag-Leffler) are used to calculate single-particle and particle-hole response functions for a square well plus Coulomb potential and the results are compared with the corresponding exact ones. The approximate and exact response functions agree well with each other in the resonant energy region. The Mittag-Leffler expansion is shown to be valid even for the long-range Coulomb potential. The computation time needed for the calculation of the particle-hole response function can be reduced considerably by using the pole expansions
Additional details
Publishing Information
- Journal Title
- Physical Review, C
- Journal Volume
- 42
- Journal Issue
- 6
- Series
- Phys. Rev., C.
- Journal Page Range
- 2605-2616
- ISSN
- 0556-2813
- CODEN
- PRVCA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22041015
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- GIANT RESONANCE; GREEN FUNCTION; PARTIAL WAVES; PARTICLE-HOLE MODEL; RANDOM PHASE APPROXIMATION; RESPONSE FUNCTIONS; SINGLE-PARTICLE MODEL; SQUARE-WELL POTENTIAL
- Descriptors DEC
- FUNCTIONS; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEAR POTENTIAL; POTENTIALS; RESONANCE