Abstract
In order to describe the doublet nucleon-deuteron system at low energies, Tomio et al. [Phys. Rev. C 35, 441 (1987)] proposed a two-body model featuring a potential whose asymptotic behavior is consistent with the Faddeev equation—that is, a potential involving a long-range component. The characteristics of the bound and the virtual triton and the position of the pole of kcotδ—these quantities were not considered in the above article of Tomio et al.—are calculated in the present study. A comparison of the results obtained in this way with analogous results for the short-range Hulthen and Yukawa potentials reveals that, for the doublet neutron-deuteron system, the effects of long-range interaction do not play a significant role—that is, the system in question is far from a state of the Efimov type.
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