6533b832fe1ef96bd129ae9b
RESEARCH PRODUCT
Nuclear response functions in homogeneous matter with finite range effective interactions
Jesús NavarroNguyen Van GiaiJérôme Margueronsubject
Nuclear and High Energy Physicsresponse functions[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]Nuclear TheoryTruncationNuclear TheoryFOS: Physical sciencesFinite range21.30.Fe 21.60.Jz 21.65.+f 26.60.+c01 natural sciencesNuclear Theory (nucl-th)effective nuclear interactions0103 physical sciencesConvergence (routing)Statistical physics010306 general physicsPhysics010308 nuclear & particles physicsBorn–Huang approximationFísicaNuclear matter3. Good healthHomogeneousnuclear matterrandom phase approximationQuantum electrodynamicsRandom phase approximationMultipole expansiondescription
The question of nuclear response functions in a homogeneous medium is examined. A general method for calculating response functions in the random phase approximation (RPA) with exchange is presented. The method is applicable for finite-range nuclear interactions. Examples are shown in the case of symmetric nuclear matter described by a Gogny interaction. It is found that the convergence of the results with respect to the multipole truncation is quite fast. Various approximation schemes such as the Landau approximation, or the Landau approximation for the exchange terms only, are discussed in comparison with the exact results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-01-01 |