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.

7 pages, 2 figures

References in corpus (6)

• Prediction for a four-neutron resonance
• Ab-initio no-core Gamow shell model calculations of multi-neutron systems
• Shell Model States in the Continuum
• The quest for light multineutron systems
• SS-HORSE Extension of the No-Core Shell Model: Application to Resonances in ${}^7\mathrm{H}e$
• Study on $\Lambda nn$ Bound State and Resonance

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