Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elastic and quasi-elastic electron scattering off nuclei with neutron
  excess   We present theoretical predictions for electron scattering on oxygen and
calcium isotopic chains. The calculations are done within the framework of the
distorted-wave Born approximation and the proton and neutron density
distributions are evaluated adopting a relativistic Dirac-Hartree model. We
present results for the elastic and quasi-elastic cross sections and for the
parity-violating asymmetry. As a first step, the results of the models are
tested in comparison with some of the data available for elastic and
quasi-elastic scattering on 16O and 40Ca nuclei. Then, the evolution of some
nuclear properties is investigated as a function of the neutron number. We also
present a comparison with the parity-violating asymmetry parameter obtained by
the PREX Collaboration on 208Pb and give a prediction for the future experiment
CREX on 48Ca.

28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex