Электронный каталог

Статья

Ganev, H.G.
Symplectic Symmetry Approach to Clustering in Atomic Nuclei: the Case of *2*4Mg / H.G.Ganev // Communications in Theoretical Physics. – 2025. – Vol. 77, No. 5. – P. 055301. – URL: https://doi.org/10.1088/1572-9494/ad91b6.

Symplectic symmetry approach to clustering (SSAC) in atomic nuclei, recently proposed, is modified and further developed in more detail. It is firstly applied to the light two-cluster *2*0Ne + α system of *2*4Mg, the latter exhibiting well developed low-energy , and rotational bands in its spectrum. A simple algebraic Hamiltonian, consisting of dynamical symmetry, residual and vertical mixing parts is used to describe these three lowest rotational bands of positive and negative parity in *2*4Mg. A good description of the excitation energies is obtained by considering only the SU(3) cluster states restricted to the stretched many-particle Hilbert subspace, built on the leading Pauli allowed SU(3) multiplet for the positive- and negative-parity states, respectively. The coupling to the higher cluster-model configurations allows us to describe the known low-lying experimentally observed B(E2) transition probabilities within and between the cluster states of the three bands under consideration without the use of an effective charge.



ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 341 а1 - Математические методы в теории ядра