Trineutron resonances in the SS-HORSE-NCSM approach

Abstract

The SS-HORSE-NCSM method is generalized to the case of democratic decay into an odd number of fragments. This method is applied to the search for resonances in three-neutron system (trineutron) using ab initio No-Core Shell Model calculations with realistic nucleon-nucleon potentials. The $3/2^{-}$ and $1/2^{-}$ strongly overlapping resonances are predicted when softened $NN$ interactions are used and are preferred over the case where bare $NN$ interactions of the chiral effective field theory are used with no resonance obtained.

arXiv comment7 pages, 2 figures

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Cited by in corpus (5)

• Alpha-Particle Monopole Form Factors with Ab Initio No-Core Shell Model
• Applications of the Modified Hulthén-Kohn Method for Bound and Scattering States
• Direct observation of three-neutron emission from ${}^7$He${}^{\ast }$ and the search for the trineutron
• Complex-scaled no-core shell model calculations of bound and unbound nuclear states in light nuclei
• Tetraneutron resonance and its isospin analogues