Modelling double charge exchange response function for tetraneutron system

Abstract

This work is an attempt to model the $4n$ response function of a recent RIKEN experimental study of the double charge exchange ${}^4$He(${}^8$He,${}^8$Be)${}^4$n reaction in order to put in evidence an eventual enhancement mechanism of the zero energy cross section, including a near-threshold resonance. This resonance can indeed be reproduced only by adding to the standard nuclear Hamiltonian an unphysically large T=3/2 attractive 3n-force which destroys the neighboring nuclear chart. No other mechanisms like cusps or related structures were found.

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Cited by in corpus (6)

• Two-proton emission and related phenomena
• Description of Four- and Five-Nucleon Systems by Solving Faddeev-Yakubovsky Equations in Configuration Space
• Tetraneutron: Rigorous continuum calculation
• Low energy structures in nuclear reactions with 4n in the final state
• On the existence of Rydberg nuclear molecules
• Searching for the Tetraneutron Resonance on the Lattice