Charge radii of Ca isotopes and correlations
Metadatos
Mostrar el registro completo del ítemEditorial
American Physical Society
Fecha
2022-03-17Referencia bibliográfica
Co, G., Anguiano, M., & Lallena, A. M. (2022). Charge radii of Ca isotopes and correlations. Physical Review C, 105(3), 034320. [https://doi.org/10.1103/PhysRevC.105.034320]
Patrocinador
Ministerio de Economía y Competitividad PID2019-104888GB-I00; European Regional Development Fund; Junta de Andalucía FQM387Resumen
We study the effects of short- and long-range correlations on the charge radii of Ca isotopes. We start our
investigation with an independent particle model consisting of Hartree-Fock plus Bardeen-Cooper-Schrieffer
calculations with finite-range effective nucleon-nucleon interactions of Gogny type. The short-range correlation
effects are evaluated by considering all the terms of a cluster expansion containing a single correlation line.
The long-range correlations are taken into account by including the coupling with the quasiparticle random
phase approximation phonons. While the effects of the short-range correlations are negligible, those of the longrange correlations largely modify the independent particle model results and improve the agreement with the
experimental data.