Asymmetric resonances in elastic n+C19 scattering are attributed to Efimov states of such neutron-rich nuclei, that is, three-body bound states of the n+n+C18 system when none of the pairs is bound or some of them are only weakly bound. By fitting to the general resonance shape described by Fano, we extract the resonance position, width, and the "Fano profile index." While Efimov states have been discussed extensively in many areas of physics, there is only one very recent experimental observation in trimers of cesium atoms. The conjunction that we present of the Efimov and Fano phenomena may lead to experimental realization in nuclei. © 2006 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Mazumdar, I., Rau, A., & Bhasin, V. (2006). Efimov states and their fano resonances in a neutron-rich nucleus. Physical Review Letters, 97 (6) https://doi.org/10.1103/PhysRevLett.97.062503