Universal Properties of Weakly Bound Two-Neutron Halo Nuclei.

  title={Universal Properties of Weakly Bound Two-Neutron Halo Nuclei.},
  author={Masaru Hongo and Dam Thanh Son},
  journal={Physical review letters},
  volume={128 21},
We construct an effective field theory of a two-neutron halo nucleus in the limit where the two-neutron separation energy B and the neutron-neutron two-body virtual energy ε_{n} are smaller than any other energy scale in the problem, but the scattering between the core and a single neutron is not fine-tuned, and the Efimov effect does not operate. The theory has one dimensionless coupling which formally runs to a Landau pole in the ultraviolet. We show that many properties of the system are… 

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