Effects of rotation and valence nucleons in molecular α-chain nuclei

Znanstveni rad - Izvorni znanstveni rad

• Autor: D. D. Zhang
• Autor: Z. X. Ren
• Autor: P. W. Zhao
• Autor: D. Vretenar
• Autor: T. Nikšić
• Autor: J. Meng
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

Effects of rotation and valence nucleons in molecular linear α- chain nuclei are analyzed using a threedimensional lattice cranking model based on covariant density functional theory. The structure of the mirror nuclei ^16C and ^16Ne is investigated as a function of rotational frequency. The valence nucleons, with respect to the 3α linear chain core of ^12C, at low frequency occupy the π molecular orbital. With increasing rotational frequency these nucleons transition from the π orbital to the σ molecular orbital, thus stabilizing the 3α linear chain structure. It is predicted that the valence protons in 16Ne change occupation from the π to the σ molecular orbital at ħω ≈ 1.3 MeV, a lower rotational frequency compared to ħω ≈ 1.7 MeV for the valence neutrons in 16C. The same effects of valence protons are found in ^20Mg, compared to the four valence neutrons in ^20O. The model is also used to examine the effect of alignment of valence nucleons on the relative positions and size of the three α clusters in the mirror nuclei ^16C and ^16Ne.

• Ključne riječi (engleski): molecular linear α-chain nuclei
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review C
• Brojčani podaci: vol. 105, br. 2, 024322
• p-ISSN: 2469-9985
• e-ISSN: 2469-9993
• DOI: https://doi.org/10.1103/PhysRevC.105.024322
• URN:NBN: urn:nbn:hr:217:557475
• Datum objave publikacije: 2022
• Projekt: Šifra: KK.01.1.1.01.0004; Naziv (engleski): QuantiXLie Center of Excellence; Kratica: QuantiXLie; Voditelj: Hrvoje Buljan, Pavle Pandžić; Pravna nadležnost: eu; Financijer: Croatian Government and European Union; Linija financiranja: European Regional Development Fund - the Competitiveness and Cohesion Operational Programme
• URL dokumenta: https://link.aps.org/doi/10.1103/PhysRevC.105.024322
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2022 American Physical Society; Received 25 November 2021; Accepted 9 February 2022; Published 22 February 2022.
• Datum i vrijeme pohrane: 2023-09-13 20:14:20