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The Systematic Structure-Change into the Molecule-like Structures in the Self-Conjugate $4n$ Nuclei
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1968
Year
Crystal StructureEngineeringNuclear PhysicsNuclear StructureSelf-conjugate 4NMolecular BiologyChemistrySpectra-structure CorrelationMolecule-like StructureThreshold EnergyStructure ElucidationNuclear Symmetry EnergyPhotophysical PropertyBiophysicsMolecule-like StructuresNuclear TheoryAtomic PhysicsPhysical ChemistryQuantum ChemistryCrystallographyStructural BiologyNatural SciencesSystematic Structure-change
Rotational bands with diatomic‑molecule‑like structure appear systematically near the decay threshold in self‑conjugate 4n light nuclei such as α‑α, α‑12C, and α‑16O. The paper investigates how the transition to molecule‑like structure relates to the decay threshold and qualitatively examines the polarization degree toward subunit separation. A diagram depicting the systematic structure change via α‑particle release as a function of mass number and energy is presented. This diagram allows the rotational bands with K = 0± in light 4n nuclei to be summarized.
The rotational bands with the diatomic-molecule-like structure in the self-conjugate 4n light nuclei, such as, α-α, α-12C and α-16O, appear systematically at near the threshold energy for the decay into the relevant subunit nuclei. The relations between the structure change into the molecule-like structure and the threshold energy for the decay into the subunit nuclei are discussed. According to this discussions, the diagram for the systematic structure change into the molecule-like structures through the alpha particle release is presented as the function of the mass number and the energy. Upon this diagram the rotational bands with K = 0± in light 4n nuclei can be summarized. The order of the degree of the polarization toward the separation of the subunit nuclei for the diatomic molecule-like structure case is discussed qualitatively.