title: Efimov physics around the neutron-rich 60Ca isotope.
abstract: We calculate the neutron-60Ca S-wave scattering phase shifts using state of the art coupled-cluster theory combined with modern ab initio interactions derived from chiral effective theory. Effects of three-nucleon forces are included schematically as density dependent nucleon-nucleon interactions. This information is combined with halo effective field theory in order to investigate the 60Ca-neutron-neutron system. We predict correlations between different three-body observables and the two-neutron separation energy of 62Ca. This provides evidence of Efimov physics along the calcium isotope chain. Experimental key observables that facilitate a test of our findings are discussed.
authors.affiliation: Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA and Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
authors.forename: G
authors.initials: G
authors.lastname: Hagen
authors.forename: P
authors.initials: P
authors.lastname: Hagen
authors.forename: H-W
authors.initials: HW
authors.lastname: Hammer
authors.forename: L
authors.initials: L
authors.lastname: Platter