Efimov effect in nuclear three-body resonance decays.
We investigate the effects of the nearly fulfilled Efimov conditions on the properties of three-body resonances. Using the hyper-spheric adiabatic expansion method we compute energy distributions of fragments in a three-body decay of a nuclear resonance. As a realistic example we investigate the 1- state in the halo nucleus 11Li within a three-body model 9Li + n +n model. Characteristic features appear as sharp peaks in the energy distributions. Their origin, as in the Efimov effect, is in the large two-body s-wave scattering lengths between the pairs of fragments.
Garrido
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Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid, Spain.
Fedorov
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DV
Jensen
A S
AS