Can realistic nuclear interactions tolerate a resonant tetraneutron ?

Abstract

The possible existence of four-neutron resonances close to the physical energy region is explored. Faddeev-Yakubovsky equations have been solved in configuration space using realistic nucleon-nucleon interaction models. Complex Scaling and Analytical Continuation in the Coupling Constant methods were used to follow the resonance pole trajectories, which emerge out of artificially bound tetraneutron states. The final pole positions for four-neutron states lie in the third energy quadrant with negative real energy parts and should thus not be physically observable.

10 pages, 6 figs, 2 tables. To be published in Phys. Rev. C

References in corpus (6)

• The detection of neutron clusters
• Can Modern Nuclear Hamiltonians Tolerate a Bound Tetraneutron?
• Three-neutron resonance trajectories for realistic interaction models
• Sub-threshold resonances in few-neutron systems
• Is the tetraneutron a bound dineutron-dineutron molecule?
• Resonances in the three-neutron system

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