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Exploration of resonant continuum and giant resonance in the relativistic approach
Exploration of resonant continuum and giant resonance in the relativistic approach
- Source :
- Physical Review C. 66
- Publication Year :
- 2002
- Publisher :
- American Physical Society (APS), 2002.
-
Abstract
- Single-particle resonant-states in the continuum are determined by solving scattering states of the Dirac equation with proper asymptotic conditions in the relativistic mean field theory (RMF). The regular and irregular solutions of the Dirac equation at a large radius where the nuclear potentials vanish are relativistic Coulomb wave functions, which are calculated numerically. Energies, widths and wave functions of single-particle resonance states in the continuum for ^{120}Sn are studied in the RMF with the parameter set of NL3. The isoscalar giant octupole resonance of ^{120}Sn is investigated in a fully consistent relativistic random phase approximation. Comparing the results with including full continuum states and only those single-particle resonances we find that the contributions from those resonant-states dominate in the nuclear giant resonant processes.<br />16 pages, 2 figures
- Subjects :
- Physics
Nuclear and High Energy Physics
Nuclear Theory
Isoscalar
FOS: Physical sciences
Resonance (particle physics)
Relativistic particle
Nuclear Theory (nucl-th)
symbols.namesake
Mean field theory
Giant resonance
Dirac equation
Quantum electrodynamics
Quantum mechanics
symbols
Random phase approximation
Wave function
Subjects
Details
- ISSN :
- 1089490X and 05562813
- Volume :
- 66
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi.dedup.....1079f73dba0042ea6bf60ef881a86def
- Full Text :
- https://doi.org/10.1103/physrevc.66.024311