English

The $a_0K^+K^-$-vertex in light cone QCD sum rules

High Energy Physics - Phenomenology 2009-11-10 v1

Abstract

We investigate the a0K+Ka_0K^+K^--vertex in the framework of light cone QCD sum rules. We estimate the coupling constant ga0K+K_{a_0K^+K^-} which is an essential ingredient in the analysis of physical processes involving a0(980)a_0(980) meson. Our result is somewhat larger than the previous determinations of this coupling constant.

Keywords

Cite

@article{arxiv.hep-ph/0312276,
  title  = {The $a_0K^+K^-$-vertex in light cone QCD sum rules},
  author = {A. Gokalp and O. Yilmaz},
  journal= {arXiv preprint arXiv:hep-ph/0312276},
  year   = {2009}
}

Comments

8 pages, 1 figure