Abstract

We present a technique that treats, without approximations, the continuum part of the excitation spectrum in random phase approximation calculations with finite-range interactions. The interaction used in Hartree- Fock calculations to generate the single-particle basis is also used in continuum random phase approximation calculations. We show results for electric dipole and quadrupole excitations in 16O, 22O, 24O, 40Ca, 48Ca, and 52Ca nuclei. We compare our results with those of the traditional discrete random phase approximation, with continuum independent-particle model results, and with results obtained by a phenomenological random phase approximation approach. We study the relevance of the continuum, of the residual interaction, and of the self-consistency. We also compare our results with the available total photoabsorption cross-section data.

Autore Pugliese

• Co' Giampaolo

Tutti gli autori

• V. De Donno , G. Co' , M. Anguiano , A. M. Lallena

Titolo volume/Rivista

PHYSICAL REVIEW. C, NUCLEAR PHYSICS

Anno di pubblicazione

2011

ISSN

0556-2813

ISBN

Non Disponibile

Numero di citazioni Wos

22

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

23

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile