DREB2014 - Direct Reactions with Exotic Beams

The symmetry energy term of the nuclear equation-of-state, describing fundamental phenomena both in nuclear physics and in astrophysics, is the focus of huge theoretical and experimental efforts. The electric dipole response of nuclei as a function of the neutron-to-proton-asymmetry is driven by the symmetry energy and in particular by its density dependence. Studies of the Pygmy Dipole...

Through the studies of the structure and spectroscopy of the neutron-rich nuclei along extended isotopic chain towards the drip-line, we can develop our understanding of the evolution of the nuclear structure with the isospin degree of freedom and of the modeling of the nuclear correlations. Experimentally the neutron drip-line is known up to the oxygen chain, with 24O being the last...

EXL (EXotic nuclei studied in Light-ion induced reactions at the NESR storage ring) is a project within NUSTAR [1] at FAIR [2]. It aims for the investigation of light-ion induced direct reactions in inverse kinematics with radioactive ions cooled and stored in the future NESR (New Experimental Storage Ring). A universal detector system will be built around an internal target of the NESR in...

Single nucleon knockout and quasi-free scattering reactions are valuable tools to study single-particle properties of nuclei [1]. Particularly, it has been argued, that they can be used to study spectroscopic factors on an absolute scale [2]. Quenching of these spectroscopic factors as compared to shell-model predictions has been observed in nuclear knockout reactions [3]. While for stable...

Quasi-free knock-out reactions are a direct tool to study the occupancy and the location of valance and deeply bound single particle states. Recent experiments have showed a reduction of spectroscopic strengths of about 60-70% for stable nuclei. When going to driplines this tendency is changing , loosely bound nucleons have spectroscopic strengths close unity while deeply bound nucleons have a...