Effects of deformation, pairing and tensor correlation on the evolution of bubble structure within the Skyrme-Hartree-Fock method - INSPIRE

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Effects of deformation, pairing and tensor correlation on the evolution of bubble structure within the Skyrme-Hartree-Fock method

Nov 19, 2018

Published in:

Eur.Phys.J.A 54 (2018) 11, 193

Published: Nov 19, 2018

DOI:

10.1140/epja/i2018-12620-5

View in:

Nuclear Science References

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Abstract: (Springer)

We study the effects of deformation, tensor and pairing correlation on the evolution of bubble structure in

^{46}

Ar,

^{22}

O and Cl isotopes using a deformed Skyrme-Hartree-Fock model with BCS and Lipkin-Nogami number projection approximation. The parameter SLy5 of the Skyrme energy functionals is adopted together with various kinds of density-dependent pairing interaction and various kinds of tensor interaction. In the spherical case, considering pairing correlation (IS + IV) or switch off pairing, there is a clear bubble structure in

^{46}

Ar with interaction SLy5 + Tw, respectively. For

^{46}

Ar, we find that deformation weakens the bubble structure strongly, and pairing correlation also weakens the bubble in

^{46}

Ar and

^{22}

O , respectively. On the other hand, the SLy5 + Tw + IS + IV interaction evolves the bubble structure of neutron-rich Cl isotopes

^{43-47}

Cl in deformed cases because the occupation probability of states

2s_{1/2}

decreases from 1 to 0.5.

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