Efimov Physics around the neutron rich Calcium-60 isotope

TL;DR

This paper combines advanced nuclear theory and effective field theory to predict Efimov physics phenomena in neutron-rich Calcium isotopes, specifically around Calcium-60, and suggests experimental tests for these predictions.

Contribution

It introduces a novel approach integrating coupled-cluster calculations with halo effective field theory to explore Efimov states in calcium isotopes.

Findings

Predicted correlations between three-body observables and two-neutron separation energy.

Evidence supporting the presence of Efimov physics in the Calcium isotope chain.

Discussion of experimental observables to test the theoretical predictions.

Abstract

We calculate the neutron-Calcium-60 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 Calcium-60-neutron-neutron system. We predict correlations between different three-body observables and the two-neutron separation energy of Calcium-62. This provides evidence of Efimov physics along the Calcium isotope chain. Experimental key observables that facilitate a test of our findings are discussed.