Speaker
Description
The ELIGANT instruments are the dedicated tools being developed for studying high-energy collective nuclear excitations using the gamma beam at ELI-NP. The topics of interest in these studies range from fundamental nuclear structure properties of the Giant Dipole Resonance and the low-energy strength enhancement in the Pygmy Dipole Resonance region, as well as applications in p-process nucleosynthesis and propagation of Ultra-High Energy Cosmic Rays. The tools at our disposal consist of large-volume LaBr3:Ce and CeBr3 detectors for high-energy γ-rays, liquid scintillators and lithium glass scintillators for high- and low-energy neutron time-of-flight. In preparation for the gamma-ray beam, these instruments have been installed and commissioned with sources. They have also been used for preparatory experiments at the IFIN-HH Tandem accelerators, aiming to provide the ELI-NP physics program with a running start with complementary measurements. Most notably, several in-beam campaigns performed was in collaboration with the Department of Nuclear Physics, where the ELIGANT detectors were mounted in the ROSPHERE spectroscopic array at one of the 9MV beamlines, and a series of experiments were performed aiming for GDR and PDR properties via γ-ray studies. Here, we will give an overview of the ELIGANT group's present and future activities.
This work is supported by the Romanian Ministry of Research and Innovation under research contract PN 23 21 01 06 and contract PNIII-P4-PCE-2021-0595.
