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Few-body calculations of η-nuclear quasibound states

Barnea, N ; Friedman, E ; Gal, A

Physics Letters B, 30 July 2015, Vol.747, pp.345-350 [Peer Reviewed Journal]

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  • Title:
    Few-body calculations of η-nuclear quasibound states
  • Author: Barnea, N ; Friedman, E ; Gal, A
  • Subjects: Few-Body Systems ; Mesic Nuclei ; Forces in Hadronic Systems and Effective Interactions ; Physics
  • Is Part Of: Physics Letters B, 30 July 2015, Vol.747, pp.345-350
  • Description: We report on precise hyperspherical-basis calculations of and quasibound states, using energy dependent interaction potentials derived from coupled-channel models of the nucleon resonance. The attraction generated in these models is too weak to generate a two-body bound state. No bound-state solution was found in our calculations in models where , with the scattering length, covering thereby the majority of resonance models. A near-threshold bound-state solution, with separation energy of less than 1 MeV and width of about 15 MeV, was obtained in the 2005 Green–Wycech model where . The role of handling self consistently the subthreshold interaction is carefully studied.
  • Language: English
  • Identifier: ISSN: 0370-2693 ; E-ISSN: 1873-2445 ; DOI: 10.1016/j.physletb.2015.06.010

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