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arXiv · 1705.07927

Modelling double charge exchange response function for tetraneutron system

Rimantas Lazauskas·Emiko Hiyama·Jaume Carbonell
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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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Rimantas Lazauskas, Emiko Hiyama, Jaume Carbonell. 2017-05-22. Modelling double charge exchange response function for tetraneutron system. https://doi.org/10.1093/ptep%2Fptx078

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