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Efimov Physics Around the Neutron-Rich Ca-60 Isotope

G. Hagen ; P. Hagen ; H. W. Hammer ; Lucas Platter (Institutionen för fundamental fysik, Subatomär fysik)
Physical Review Letters (0031-9007). Vol. 111 (2013), 13,
[Artikel, refereegranskad vetenskaplig]

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

Nyckelord: effective-field theory, halo nuclei, 3-body system, states



Denna post skapades 2013-10-28. Senast ändrad 2015-01-19.
CPL Pubid: 185744

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Fysik

Chalmers infrastruktur