TY - JOUR
AU - Kalzhigitov, N.
AU - Kurmangaliyeva, V.O.
AU - Takibayev, N.Zh.
AU - Vasilevsky, V.S.
PY - 2023/03/12
Y2 - 2023/03/22
TI - Resonance Structure of 8Be within the Two-Cluster Resonating Group Method
JF - Ukrainian Journal of Physics
JA - Ukr. J. Phys.
VL - 68
IS - 1
SE - Fields and elementary particles
DO - 10.15407/ujpe68.1.3
UR - https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2023013
SP - 3
AB - <p>A microscopic two-cluster model is applied to study the elastic alpha-alpha scattering and the resonance structure of <sup>8</sup>Be. The model is an algebraic version of the Resonating Group Method (RGM), which involves the complete set of oscillator functions to expand the wave function of a two-cluster system. The interaction of nucleons inside each cluster and the interaction between clusters are determined by the well-known semirealistic nucleon-nucleon potentials which are employed in calculations. They differ by a size of the core at small distances between nucleons and realize the strong, moderate, and weak cores. They allow us to study dependence of calculated quantities on the shape of a nucleon-nucleon potential. The detailed analysis of resonance wave functions is carried out in the oscillator, coordinate, and momentum spaces. Effects of the Pauli principle on the wave functions of the <sup>8</sup>Be continuous spectrum states are thoroughly studied.</p>
ER -