Volume 45, Number 3, February 1999
|Page(s)||296 - 300|
|Published online||01 September 2002|
The role of virtual states in the appearance of two-neutron halo
Institute of Atomic Physics - P.O. Box MG-6, Bucharest, Romania
Accepted: 23 November 1998
The existence of loosely bound, spatially extended states in a two-particle plus core system is studied. The description is given in the Schrödinger picture by treating the interactions in the scattering length approximation. The treatment supports the statement that the most favourable case for the appearance of the two-neutron halo is the existence of large negative neutron-core scattering length (a virtual state) besides the n-n virtual state.
PACS: 21.10.Gv – Mass and neutron distributions / 21.60.-n – Nuclear-structure models and methods / 03.65.Ge – Solutions of wave equations: bound states
© EDP Sciences, 1999
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