Energy weighted sum rules for spectral functions in nuclear matter

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.3050· OSTI ID:7308285

Polls, A; Ramos, A; Ventura, J ^[1]; Amari, S; Dickhoff, W H ^[2]

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1. Departament d'Estructura i Constituents de la Materia, Universitat de Barcelona, Diagonal 647, 08028 Barcelona (Spain)
2. Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)

The energy weighted sum rule of single-particle spectral functions in nuclear matter is studied. The spectral functions include the influence of short-range correlations as generated by the Reid potential in the framework of the self-consistent Green's function method. For the range of momenta studied, the sum rule is rather accurately fulfilled numerically (within 5%). It is observed that the high-energy tail of the particle part of the spectral function exhausts most of the sum rule, which confirms the need for the appearance of single-particle strength at very high energies.

• OSTI ID: 7308285
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 49:6; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR MATTER
SPECTRAL FUNCTIONS
SUM RULES
CORRELATIONS
GREEN FUNCTION
NUMERICAL ANALYSIS
REID POTENTIAL
SINGLE-PARTICLE MODES
EQUATIONS
FUNCTIONS
MATHEMATICS
MATTER
NUCLEON-NUCLEON POTENTIAL
OSCILLATION MODES
POTENTIALS
663110* - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)