English

Trineutron resonances in the SS-HORSE-NCSM approach

Nuclear Theory 2024-08-22 v2

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 3/23/2^- and 1/21/2^- strongly overlapping resonances are predicted when softened NNNN interactions are used and are preferred over the case where bare NNNN interactions of the chiral effective field theory are used with no resonance obtained.

Keywords

Cite

@article{arxiv.2403.18232,
  title  = {Trineutron resonances in the SS-HORSE-NCSM approach},
  author = {I. A. Mazur and M. K. Efimenko and A. I. Mazur and I. J. Shin and V. A. Kulikov and A. M. Shirokov and J. P. Vary},
  journal= {arXiv preprint arXiv:2403.18232},
  year   = {2024}
}

Comments

7 pages, 2 figures