Speaker
Description
Understanding and experimentally identifying the nature of the PDR is one of the important challenges in the field of nuclear structure physics. In addition, the PDR can provide information of astrophysical importance such as on the nuclear symmetry energy and nuclear equation of state relevant for, e.g., understanding neutron stars, and nucleosynthesis. To investigate the microscopic nature of the PDR, an experimental program has been initiated at the 9-MV Tandem accelerator of IFIN-HH using the $^{53}$Cr(d,p$\gamma$)$^{54}$Cr and $^{61}$Ni(d,p$\gamma$)$^{62}$Ni reactions. Excited states were populated with a 12 MeV deuteron beam and studied in coincidence using the ELIFANT $\gamma$-ray spectrometer together with a silicon $\Delta E$--$E$ telescope for charged-particle identification. These measurements provide access to the neutron single-particle components of low-lying dipole states and complement previous investigations employing photon scattering data. Preliminary results for $^{54}$Cr and $^{62}$Ni will be presented and discussed in comparison with nuclear resonance fluorescence data, providing new insight into the microscopic structure of the PDR.
This work was partially supported by the Institute of Atomic Physics contract numbers ELI-RO/RDI/2024-002 (CIPHERS), ELI-RO/RDI/2024-007 (ELITE) the Romanian Ministry of Research and Innovation under research contract PN 23 21 01 06.