We present ab initio calculations of resonances for 7He, a nucleus with no
bound states, using the realistic nucleon-nucleon interaction Daejeon16. For
this, we evaluate the n−6He elastic scattering phase shifts obtained
within an S-matrix analysis of no-core shell model results for states in the
continuum. We predict new broad resonances likely related to fragmentary
experimental evidence.Comment: 6 pages, 3 figure