Light Scalar Mesons in the QCD Sum Rule
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We study the light scalar mesons in the QCD sum rule. We find that there are five independent scalar tetraquark currents in the local form, and we perform QCD sum rule analysis using both these currents and their combinations. Compared with the sum rules by conventional \bar{q} q currents, our result supports a tetraquark structure for low-lying scalar mesons.
Keywords
Cite
@article{arxiv.0711.1007,
title = {Light Scalar Mesons in the QCD Sum Rule},
author = {Hua-Xing Chen and Atsushi Hosaka and Shi-Lin Zhu},
journal= {arXiv preprint arXiv:0711.1007},
year = {2008}
}
Comments
4 pages, 1 figure. Talk given at the Yukawa International Seminar (YKIS) 2006, "New frontiers in QCD", Kyoto, Japan, 20 Nov. - 8 Dec. 2006