Published June 3, 1991 | Version v1
Journal article Metadata-only

Spurious effects of the pairing force on the dipole sum rule

Creators

  • 1. Sevilla Univ. (Spain). Dept. de Fisica Atomica, Molecular y Nuclear

Description

The effect of using the pairing interaction to describe the giant dipole resonance is studied. Realistic calculations for 120Sn show an important increase in the dipole energy-weighted sum rule relative to the classical value of approximately 20%. That increase is aspurious effect of using a non-galilean invariant interaction. It is also shown, by using a schematic model, that the BCS approximation is not responsible for that spurious increase. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics, A
Journal Volume
528
Journal Issue
1
Series
Nucl. Phys., A.
Journal Page Range
144-158
ISSN
0375-9474
CODEN
NUPAB

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
22082958
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANNIHILATION OPERATORS; BCS THEORY; CREATION OPERATORS; E1-TRANSITIONS; GIANT RESONANCE; HAMILTONIANS; HARMONIC OSCILLATOR MODELS; NUCLEAR FORCES; NUCLEON-NUCLEON INTERACTIONS; NUCLEON-NUCLEON POTENTIAL; PAIRING INTERACTIONS; QUASI PARTICLES; RANDOM PHASE APPROXIMATION; ROTATIONAL STATES; STRENGTH FUNCTIONS; SUM RULES; THEORETICAL DATA; TIN 120; TWO-BODY PROBLEM
Descriptors DEC
BARYON-BARYON INTERACTIONS; DATA; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EQUATIONS; EVEN-EVEN NUCLEI; EXCITED STATES; FUNCTIONS; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; MANY-BODY PROBLEM; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MULTIPOLE TRANSITIONS; NUCLEI; NUMERICAL DATA; PARTICLE INTERACTIONS; POTENTIALS; QUANTUM OPERATORS; RESONANCE; STABLE ISOTOPES; TIN ISOTOPES

Optional Information

Contract/Grant/Project number
Contract CICYT PB-89-0636; CICYT AEN-90-0932