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2024-04-01

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cc-by (c) Frycz, D. et al., 2024
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/215899

SHAPE COEXISTENCE AND SUPERDEFORMATION IN28Si

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https://doi.org/10.48550/arXiv.2312.00750

Abstract

We study the shape coexistence of differently deformed states within 28Si using shell-model and beyond-mean-field techniques. Experimentally, 28Si exhibits shape coexistence between an oblate ground state and an excited prolate structure. The oblate rotational band is described well within the sd shell using the USDB interaction. However, for the prolate band, a modification of this interaction is required, lowering the single-particle energy of the 1d3/2 orbit. Furthermore, we explore the possibility of a superdeformed configuration in 28Si. Our calculations, spanning both the sd and pf shells, rule out the existence of a superdeformed 0+ bandhead within an excitation energy range of 10-20 MeV.

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Models nuclears, Física nuclear

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Nuclear models, Nuclear physics

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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FRYCZ, Dorian, et al. SHAPE COEXISTENCE AND SUPERDEFORMATION IN28Si. Acta Physica Polonica B Proceedings Supplement. 2024. Vol. 17, num. 3. ISSN 1899-2358. [consulted: 14 of August of 2026]. Available at: https://hdl.handle.net/2445/215899

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