Abstract
The effect of the force range on an effective long-range interaction in a system of three resonantly interacting particles is considered. By employing a boundary-condition approach, it is explicitly shown that the account of the force range gives rise to a correction / in the effective long-range interaction. The correction is universal (i.e., independent of detail structure of the force), and is attractive for symmetric three-particle states. The effect of the correction on the well-known correlation between the three-particle binding energy and the particle-pair scattering length is calculated.
- Received 14 December 1992
DOI:https://doi.org/10.1103/PhysRevC.47.1876
©1993 American Physical Society