A cluster calculation for 6He spectrum

Autor: Igor Filikhin, Vladimir Suslov, Branislav Vlahovic
Rok vydání: 2014
Předmět:
Zdroj: Physics of Atomic Nuclei. 77:384-388
ISSN: 1562-692X
1063-7788
DOI: 10.1134/s1063778814030089
Popis: The 6He nucleus is considered as the cluster α + n + n system. The excitation energies of the low-lying levels are calculated using the configuration-space Faddeev equations. The analytical continuation method in a coupling constant is applied for calculation of resonance parameters. The αn interaction is constructed to reproduce the results of R-matrix analysis for αn-scattering data. A realistic AV14 potential describes the nn interaction. Additional three-body potential adjusted by the ground state energy of 6He is used. The energies of the low-lying resonances of 6He (01+, 02+, 21+) are reasonably reproduced by the calculations.
Databáze: OpenAIRE