Addendum: Triton and hypertriton binding energies calculated from SU_6 quark-model baryon-baryon interactions

TL;DR

This paper updates the calculation of triton and hypertriton binding energies using an energy-independent SU_6 quark-model interaction, finding slightly smaller energies and implications for three-body forces.

Contribution

It introduces a renormalized, energy-independent interaction derived from a quark-model, improving previous binding energy calculations.

Findings

Triton binding energy is 8.14 MeV with charge-dependence correction.

Slight reduction in binding energies compared to previous energy-dependent models.

Approximately 350 keV of energy remains to be explained by three-body forces.

Abstract

Previously we calculated the binding energies of the triton and hypertriton, using an SU_6 quark-model interaction derived from a resonating-group method of two baryon clusters. In contrast to the previous calculations employing the energy-dependent interaction kernel, we present new results using a renormalized interaction, which is now energy independent and reserves all the two-baryon data. The new binding energies are slightly smaller than the previous values. In particular the triton binding energy turns out to be 8.14 MeV with a charge-dependence correction of the two-nucleon force, 190 keV, being included. This indicates that about 350 keV is left for the energy which is to be accounted for by three-body forces.