Phys. Rev. C 74, 054312 (2006) [6 pages]Four-body structure of Λ7Li and ΛN spin-dependent interactionReceived 9 June 2006; published 27 November 2006 Two spin-doublet states in Λ7Li are studied on the basis of the α+Λ+n+p four-body model. We employ the two-body interactions that reproduce the observed properties of any subsystems composed of αN,αΛ, αNN, and αΛN. Furthermore, the ΛN interaction is adjusted so as to reproduce the 0+-1+ splitting of in Λ4H. The calculated energy splittings of 3/2+-1/2+ and 7/2+-5/2+ states in Λ7Li are 0.69 and 0.46 MeV, which are in good agreement with the recent observed data. The spin-dependent components of the ΛN interaction are discussed. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.74.054312
DOI:
10.1103/PhysRevC.74.054312
PACS:
21.80.+a, 21.10.Dr, 21.60.Gx, 21.45.+v
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