  A relativistic mean field hadronic model with a dark matter (DM) particle
coupled to nucleons including short-range correlations (SRC) is applied to
study neutron stars (NS). The lightest neutralino is chosen as the dark
particle candidate, which interacts with nucleons by the exchange of Higgs
bosons. A detailed thermodynamical analysis shows that the contribution of the
DM fermions to the energy density of the matter composed by these particles and
nucleons is completely dominated by the DM kinetic terms. The model reproduces
satisfactorily the constraints on the mass-radius diagram obtained from the
analysis of the combined data from the NICER mission, LIGO and Virgo
collaborations, and mass measurements from radio observations. We show that the
SRC balance the reduction of the neutron star mass due to the DM component, and
because of that the model is able to present more massive NS. We also present a
study of the effect, in the NS mass-radius profiles, of the uncertainties in
some bulk parameters related to the hadronic sector. We find that it is
possible to generate parametrizations, with DM content, compatible with the
recent astrophysical constraints and with the uncertainty in the symmetry
energy slope obtained from the results reported by the updated Lead Radius
EXperiment (PREX-2).
