A central issue in the theory of astrophysical compact objects and heavy ion reactions at intermediate and relativistic energies is the Nuclear Equation of State (EoS). On one hand, the large and expanding set of experimental and observational data is expected to constrain the behaviour of the nuclear EoS, especially at density above saturation, where it is directly linked to fundamental proces...

Two of the key issues in understanding the neutron-to-proton ratio in a core-collapse supernova are discussed. One of these is the behavior of the neutrino-nucleon cross sections as supernova energies. The other issue is the many-body properties of the neutrino gas near the core when both one-and two-body interaction terms are included.

A basic assumption which underpins recent applications of eikonal few-body models to nuclear scattering and nuclear reactions is that of the addition of the constituent scattering phases. We investigate the accuracy of this assumption in the case of the elastic scattering of He, treated as a five-constituent (a14n) system, from a light target nucleus at energies of 10’s of MeV/nucleon. To do so...

The study of few-body problems has played an important role in many areas of physics [1]. Over the years accurate methods have been developed to solve the few-body equations. The degree of sophistication required depends on the physical system, i.e. to solve the fewbody problem in atomic physics requires a far higher accuracy than in hadronic physics. In recent years the development and applica...

Within this work we derive and analyse an expression for the free energy of a single-species system in thermodynamic limit terms generalised cavity volume, that is exact general, principle applicable to systems across their entire range density, as well particles within general coordinate space. This provides universal equation state, can thus relate volume classical results, such Mayer's clust...

Here we consider one of the basic models for many-body problems under an external field: the molecule ion H+2 under the effect of an external Stark-type potential. If we consider the vibrational energy levels of the first two electronic states of the molecule ion H+2 then, in the semiclassical limit and by means of a suitable modified Born-Oppenheimer method, we can prove that they switch to sh...