Three-Body approach to the K^- d Scattering Length in Particle Basis
Nuclear Theory
2009-11-07 v1
Abstract
We report on the first calculation of the scattering length A_{K^-d} based on a relativistic three-body approach where the two-body input amplitudes coupled to the Kbar N channels have been obtained with the chiral SU(3) constraint, but with isospin symmetry breaking effects taken into account. Results are compared with a recent calculation applying a similar set of two-body amplitudes,based on the fixed center approximation, considered as a good approximation for a loosely bound target, and for which we find significant deviations from the exact three-body results. Effects of the hyperon-nucleon interaction, and deuteron -wave component are also evaluated.
Keywords
Cite
@article{arxiv.nucl-th/0207030,
title = {Three-Body approach to the K^- d Scattering Length in Particle Basis},
author = {A. Bahaoui and C. Fayard and T. Mizutani and B. Saghai},
journal= {arXiv preprint arXiv:nucl-th/0207030},
year = {2009}
}
Comments
5 pages, Submitted to Phys. Rev. C