arXiv:0711.3684·v1·Nuclear Theory
Comment on "Efimov States and their Fano Resonances in a Neutron-Rich Nucleus"
M. T. Yamashita🇧🇷 · T. Frederico🇧🇷 · L. Tomio🇧🇷
Abstract
By introducing a mass asymmetry in a non-Borromean three-body system, without changing the energy relations, the virtual state pole cannot move from the negative real axis of the complex energy plane (with nonzero width) and become a resonance, because the analytical structure of the unitarity cuts remains the same.
Comments: To be published in PRL