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Phys. Rev. C 69, 064312 (2004) [6 pages]

Nuclear incompressibility in the quasilocal density functional theory

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V. B. Soubbotin and V. I. Tselyaev
Nuclear Physics Department, V. A. Fock Institute of Physics, St. Petersburg State University, 198504, St. Petersburg, Russia

X. Viñas
Departament d’Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, Diagonal 645 E-08028 Barcelona, Spain

Received 9 March 2004; published 14 June 2004

We explore the ability of the recently established quasilocal density functional theory for describing the isoscalar giant monopole resonance. Within this theory we use the scaling approach and perform constrained calculations for obtaining the cubic and inverse energy weighted moments (sum rules) of the RPA strength. The meaning of the sum rule approach in this case is discussed. Numerical calculations are carried out using Gogny forces and an excellent agreement is found with HF+RPA results previously reported in literature. The nuclear matter compression modulus predicted in our model lies in the range 210–230 MeV which agrees with earlier findings. The information provided by the sum rule approach in the case of nuclei near the neutron drip line is also discussed.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.69.064312
DOI:
10.1103/PhysRevC.69.064312
PACS:
21.60.Jz, 31.15.Ew, 31.15.Gy