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Moments of inertia in light deformed nuclei: Pairing and mean-field impacts

Nesterenko VO, Mardyban MA, Reinhard PG, Repko A, Kvasil J (2024)

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Publication Type: Journal article

Publication year: 2024

Journal

Book Volume: 33

Article Number: 2450021

Journal Issue: 5

DOI: 10.1142/S0218301324500216

Abstract

The dependence of the moment of inertia on the pairing and axial quadrupole deformation β in 24Mg and 20Ne was investigated. The study is based on quadrupole-constrained calculations with three cranking approaches for (Inglis-Belyaev, Thouless-Valatin, adiabatic time-dependent Hartree-Fock) and a representative set of Skyrme forces (SVbas, SkM*, SLy6). At variance with macroscopic collective models, the calculations predict the specific regime djdβ<0 at β≥0.5 (24Mg) and β≥0.6 (20Ne), where the pairing breaks down. This regime is explained by two effects: full break up of the pairing and specific evolution of a single dominant particle-hole (1ph) configuration with β. The analysis of experimental data for the ground-state rotational bands in 24Mg and 20Ne shows that such regime is possible at low spins.

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APA:

Nesterenko, V.O., Mardyban, M.A., Reinhard, P.-G., Repko, A., & Kvasil, J. (2024). Moments of inertia in light deformed nuclei: Pairing and mean-field impacts. International Journal of Modern Physics E-Nuclear Physics, 33(5). https://doi.org/10.1142/S0218301324500216

MLA:

Nesterenko, V. O., et al. "Moments of inertia in light deformed nuclei: Pairing and mean-field impacts." International Journal of Modern Physics E-Nuclear Physics 33.5 (2024).

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