PT Journal
AU Fernandez-Soler, P
   Ruiz Arriola, E
TI Coarse graining of NN inelastic interactions up to 3 GeV: Repulsive versus structural core
SO Physical Review C
JI Phys. Rev. C
PY 2017
BP 014004
EP 14pp
VL 96
IS 1
DI 10.1103/PhysRevC.96.014004
LA English
AB The repulsive short-distance core is one of the main paradigms of nuclear physics which even seems confirmed by QCD lattice calculations. On the other hand nuclear potentials at short distances are motivated by high energy behavior where inelasticities play an important role. We analyze NN interactions up to 3 GeV in terms of simple coarse grained complex and energy dependent interactions. We discuss two possible and conflicting scenarios which share the common feature of a vanishing wave function at the core location in the particular case of S waves. We find that the optical potential with a repulsive core exhibits a strong energy dependence whereas the optical potential with the structural core is characterized by a rather adiabatic energy dependence which allows one to treat inelasticity perturbatively. We discuss the possible implications for nuclear structure calculations of both alternatives.
ER