Abstract
We show that low-energy spectra of 4n nuclei in the sd shell can be described with high accuracy in a formalism of four-body correlated structures (quartets). The states of all N ≥ Z nuclei belonging to the A = 24 isobaric chain are represented as a superposition of two-quartet states, with quartets being characterized by isospin T and angular momentum J. These quartets are assumed to be those describing the lowest states in20Ne (Tz=0),20F (Tz=1) and20O (Tz=2). We find, in particular, that the spectrum of the self-conjugate nucleus24Mg can be well reproduced in terms of T=0 quartets only and that, among these, the J=0 quartet plays by far the leading role in the structure of the ground state. These results highlight the importance of quartetting in the structure of 4n nuclei.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.