Speaker
Description
One of the key tasks in modern nuclear physics remains the theoretical and experimental investigation of clustering in medium-mass nuclei with equal numbers of neutrons and protons (N=Z ≥ 20), using the isotope ⁴⁵Sc as an example. Due to the pronounced neutron-proton interaction in the surface region of the nucleus, light clusters such as deuterons (d), tritons (³H), and alpha particles (α) can form. The emergence of such clusters is accompanied by the formation of characteristic excited states with large moments of inertia and pronounced mirror asymmetry in the spectra. These hyperdeformed, asymmetric states can be excited in reactions involving protons or light clusters. The analysis of inelastic excitation spectra and angular distributions in such reactions contributes to a deeper understanding of clustering mechanisms and the features of nucleon-nucleon interactions.
Measurements of proton scattering cross sections at an energy of 22 MeV on a scandium target with a thickness of 2 µm were carried out at the U-150M cyclotron of the Institute of Nuclear Physics (Almaty, Kazakhstan). The experiment employed a 60 cm diameter scattering chamber. Reaction products were detected using a telescope consisting of two semiconductor detectors: a ΔE detector (100 μm) for energy loss measurement and an E detector (3200 μm) for residual energy Er measurement. This detection system allowed for the identification of reaction products by their charge Z and mass number A, as well as the determination of the total kinetic energy of the particles by summing the calibrated energy values. The experimental data will be presented and compared with the results of theoretical calculations.
This research is funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. AP26102053).
