Non-Efimovian two-neutron halos with an s-wave core-neutron resonance

2025/07/25 by Platter, Lucas, Son, Dam Thanh · 1 citation
#FOS: Physical sciences #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2507.19171

Abstract

We consider two-neutron halo nuclei in which the neutron core subsystem displays a resonance close to threshold. Such resonances can be generated in an effective field theory in which the scattering length and effective range are summed to all orders. We show that no three-body parameter is required to make predictions in this case and map out the universal features of such systems. We furthermore study the dependence of these universal features on the core mass. We apply our framework to the two-neutron halo nucleus ²²C.

Citations

• Universality of Three Identical Bosons with Large, Negative Effective Range
• Three-Boson Problem near a Narrow Feshbach Resonance

Cited by

• Two-Body Contact Dynamics in a Bose Gas near a Fano-Feshbach Resonance

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