Abstract
We utilize various ab initio approaches to search for a low-lying resonance in the four-neutron () system using the JISP16 realistic interaction. Our most accurate prediction is obtained using a -matrix extension of the no-core shell model and suggests a resonant state at an energy near with a width of approximately .
- Received 20 July 2016
DOI:https://doi.org/10.1103/PhysRevLett.117.182502
© 2016 American Physical Society