English

$g_{K N \Lambda}$ and $g_{K N \Sigma}$ from QCD sum rules

Nuclear Theory 2009-09-25 v2 High Energy Physics - Phenomenology Nuclear Experiment

Abstract

gKNΛg_{K N \Lambda} and gKNΣg_{K N \Sigma} are calculated using a QCD sum rule motivated method used by Reinders, Rubinstein and Yazaki to extract Hadron couplings to goldstone bosons. The SU(3) symmetry breaking effects are taken into account by including the contributions from the strange quark mass and assuming different values for the strange and the up down quark condensates. We find gKNΛ/4π=1.96g_{K N \Lambda}/\sqrt{4 \pi} = - 1.96 and gKNΣ/4π=0.33g_{K N \Sigma}/\sqrt{4 \pi} = 0.33

Keywords

Cite

@article{arxiv.nucl-th/9508037,
  title  = {$g_{K N \Lambda}$ and $g_{K N \Sigma}$ from QCD sum rules},
  author = {Seungho Choe and Myung Ki Cheoun and Su Houng Lee},
  journal= {arXiv preprint arXiv:nucl-th/9508037},
  year   = {2009}
}

Comments

14 pages (REVTeX) and 2 PS figures