  We analyze and propose a solution to the apparent inconsistency between our
current knowledge of the Equation of State of asymmetric nuclear matter, the
energy of the Isobaric Analog State (IAS) in a heavy nucleus such as 208Pb, and
the isospin symmetry breaking forces in the nuclear medium. This is achieved by
performing state-of-the-art Hartree-Fock plus Random Phase Approximation
calculations of the IAS that include all isospin symmetry breaking
contributions. To this aim, we propose a new effective interaction that is
successful in reproducing the IAS excitation energy without compromising other
properties of finite nuclei.
