Alpha Cluster Formation and Decay in Quartetting Wave Function Approach

Abstract

We present a microscopic calculation of alpha-cluster formation in heavy nuclei by using the quartetting wave function approach. The interaction of the quartet with the core nucleus is taken in local density approximation. The alpha-cluster formation is found to be particularly sensitive to the interplay of the mean field felt by the alpha-cluster and the Pauli blocking as a consequence of antisymmetrization. The striking feature of alpha-cluster formation probability across the major shell closures of 82 protons and 126 neutrons is reproduced. The shell (or subshell) effects on the alpha-cluster formation in superheavy nuclei are also analyzed.

11 pages, 6 figures, 1 table, discussion added, accepted for publication in Phys. Rev. C

References in corpus (7)

• Alpha cluster condensation in 12C and 16O
• Structure of ground and excited states of ${}^{12}$C
• Neutron skin of ${}^{208}$Pb from Coherent Pion Photoproduction
• Alpha-decay half-lives, alpha-capture and alpha-nucleus potential
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• Alpha Clustering from the Quartet Model
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• Fission dynamics, dissipation and clustering at finite temperature
• Critical view of nonlocal nuclear potentials in alpha decay
• Nuclear states projected from a pair condensate
• Resonant and Scattering States in the $\alpha +\alpha$ System from the Non-Localized Cluster Model
• Constraints on the nuclear symmetry energy and its density slope from the α decay process
• Manifestation of deformation and nonlocality in $\alpha$ and cluster decay
• Cluster-Daughter Overlap as a New Probe of Alpha-Cluster Formation in Medium-Mass and Heavy Even-Even Nuclei
• Alpha-Cluster formation in heavy alpha-emitters within a multistep model
• The formation region of emitted $\alpha$ and heavier particles inside radioactive nuclei
• $\alpha$ decay properties of ${}^{296}$Og within the two-potential approach
• Disentangling the pair and quartet condensates
• Nuclear clustering and the electron screening puzzle
• Three-Dimensional Approach Applied to Quasi-stationary States of Deformed $\alpha$-Emitters
• Temperature dependence of cluster decay
• Quartetting Wave Function Approach to ${}^{20}$Ne: Shell Model and Local Density Approximation