2016/08/26 by R. Bijker, F. Iachello · 1 citation
Physics and Astronomy · #nucl-th #nucl-ex
paper · pdf · doi:10.1016/j.nuclphysa.2016.08.008
published as Nucl Phys A 957, 154 (2017) · 29 pages, 9 figures, 7 tables, Nuclear Physics A, in press. arXiv admin note: text overlap with arXiv:1606.01306
arxiv created 2016/08/26 · arxiv updated 2017/11/02
We discuss an algebraic treatment of four-body clusters which includes both continuous and discrete symmetries. In particular, tetrahedral configurations with T(d) symmetry are analyzed with respect to the energy spectrum, transition form factors and B(EL) values. It is concluded that the low-lying spectrum of 16O can be described by four alpha-particles at the vertices of a regular tetrahedron, not as a rigid structure but rather a more floppy structure with relatively large rotation-vibration interactions and Coriolis forces.