Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charge radii of Ca isotopes and correlations   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 in Hartree-Fock plus Bardeen-Cooper-Schrieffer calculations
with finite-range effective nucleon-nucleon interactions of Gogny type. The
short-range correlations 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
quasi-particle random phase approximation phonons. While the effects of the
short-range correlations are negligible, those of the long-range correlations
largely modify the independent particle model results and improve the agreement
with the experimental data.

33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat