Charge radii of Ca isotopes and correlations Co´, Giampaolo Anguiano Millán, Marta Lallena Rojo, Antonio Miguel This work has been partially supported by the Junta de Andalucía (FQM387), the Spanish Ministerio de Economía y Competitividad (PID2019-104888GB-I00) and the European Regional Development Fund (ERDF). One of us (G.C.) thanks Sonia Bacca for useful discussions. 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. 2022-04-21T10:53:01Z 2022-04-21T10:53:01Z 2022-03-17 journal article 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] http://hdl.handle.net/10481/74433 10.1103/PhysRevC.105.034320 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ open access Atribución-NoComercial-SinDerivadas 3.0 España American Physical Society