a(0)K(+)K(-) vertex in light cone QCD sum rules
PHYSICAL REVIEW D, vol.69, no.7, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 69 Issue: 7
- Publication Date: 2004
- Doi Number: 10.1103/physrevd.69.074023
- Journal Name: PHYSICAL REVIEW D
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Middle East Technical University Affiliated: Yes
Abstract
We investigate the a(0)K(+)K(-) vertex in the framework of light cone QCD sum rules. We estimate the coupling constant g(a0)K(+)K(-) which is an essential ingredient in the analysis of physical processes involving the a(0)(980) meson. Our result is somewhat larger than the previous determinations of this coupling constant.