Low-momentum Hyperon-Nucleon Interactions
核理论
2009-11-11 v1 高能物理 - 唯象学
摘要
We present a first exploratory study for hyperon-nucleon interactions using renormalization group techniques. The effective two-body low-momentum potential V_low-k is obtained by integrating out the high-momentum components from realistic Nijmegen YN potentials. A T-matrix equivalence approach is employed, so that the low-energy phase shifts are reproduced by V_low-k up to a momentum scale Lambda ~ 500 MeV. Although the various bare Nijmegen models differ somewhat from each other, the corresponding V_low-k interactions show convergence in some channels, suggesting a possible unique YN interaction at low momenta.
引用
@article{arxiv.nucl-th/0506065,
title = {Low-momentum Hyperon-Nucleon Interactions},
author = {B. -J. Schaefer and M. Wagner and J. Wambach and T. T. S. Kuo and G. E. Brown},
journal= {arXiv preprint arXiv:nucl-th/0506065},
year = {2009}
}
备注
4 pages, 6 figures