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Description
In the framework of the semi-empirical quark model of nuclear structure that is based on the quark model of the nucleon, the Strongly Correlated Quark Model (SCQM) we construct nuclei from light to heavy ones, including halo nuclei. Nucleons inside nuclei are bound due to junctions of SU(3) color fields of quarks [1]. According to SCQM, arrangement of nucleons within nuclei reveals the emergence of the face-centered cubic (FCC) symmetry [2]. The model of nuclear structure becomes isomorphic to the shell model and, moreover, composes the features of cluster models. Binding of nucleons in stable nuclei are provided by quark loops which form three and four nucleon correlations. Three nucleon correlations are responsible for the structure of “halo” nuclei. Quark loops leading to four-nucleon correlations are responsible for the binding energy enhancement in even-even nuclei which are composed by virtual alpha clusters. Namely virtual alpha-clusters are responsible for experimentally observed peculiarities of central nuclear density distribution. The model describes well quadrupole moments of nuclei (Fig. attached), although, as demonstrated, deformation of nuclei is much more complicated. Moreover, it shows that neutron and correspondingly matter distributions are deformed essentially larger. The role of the “pairing” effect and structure of isomers are discussed.
References
[1] G. Musulmanbekov in Frontiers of Fundamental Physics, New York, Kluwer Acad/Plenum Publ., 2001, p. 109 - 120.; PEPAN Lett., 2021, v.18, N5, p. 548-558.
[2] G. Musulmanbekov and N.D. Cook, Phys. Atom. Nucl. 71, 1226, 2008
| Section | Nuclear structure: theory and experiment |
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