Scalar Tetraquark Currents With Application to the QCD Sum Rule
High Energy Physics - Phenomenology
2008-12-18 v1
Abstract
We study the light scalar mesons in the QCD sum rule. We construct both the diquark-antidiquark currents and the meson-meson currents . We find that there are five independent currents for both cases, and derive the relations between them. For the meson-meson currents, five independent currents are formed by products of color singlet pairs or color octet pairs. However, they can be related to each other, and the relations are derived. We obtain the masses of the light scalar mesons which are consistent with the experiments.
Keywords
Cite
@article{arxiv.0811.1514,
title = {Scalar Tetraquark Currents With Application to the QCD Sum Rule},
author = {Hua-Xing Chen and Atsushi Hosaka and Shi-Lin Zhu},
journal= {arXiv preprint arXiv:0811.1514},
year = {2008}
}
Comments
Talk given at Workshop on Chiral Symmetry in Hadron and Nuclear Physics: Chiral07, Osaka, Japan, 13-16 Nov 2007