Conveners
Nuclear Structure Studies with photons
- Anton Tonchev (Lawrence Livermore National Laboratory)
The advantages of combining broadband bremsstrahlung beams and highly-brilliant gamma-ray beams from Compton back-scattering will be discussed on the basis of recent experimental programs. Due to the low angular momentum transfer through real photons, the sensitivity of such studies [1] is high for low multipoles, i.e., in particular for the electric and magnetic dipole response, but also for...
Photon beams are a highly selective probe of the charge and current distributions of nuclei. The specific spin selectivity and strength sensitivity of this probe enables an almost model-independent spectroscopic study of dipole excitations at energies up to the particle emission threshold and investigations of the collective response of the internal degrees of freedom of the nucleus. In this...
We investigate the dipole strength distributions in $^{56}$Fe using the nuclear resonance fluorescence (NRF) technique with 100% linearly polarized photons for incident beam energies below the neutron separation energy (~11 MeV) at the High Intensity Gamma-ray Source (HIgS) facility at the Triangle Universities Nuclear Laboratory. Preliminary NRF results of observed dipole states and their...
A diverse set of probes has confirmed two-nucleon (2N) short-ranged correlated structures inside nuclei, mainly in n-p form [1]. Additionally, some light nuclei of astrophysical importance, like $^7$Li and $^7$Be, exhibit clear signatures of loosely bound 3N structures with core-α [2]. Moreover, the energetic photons in GDR and quasi-deuteron regions are expected to interact with few-nucleon...
