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arXiv · 0711.1007

Light Scalar Mesons in the QCD Sum Rule

Hua-Xing Chen·Atsushi Hosaka·Shi-Lin Zhu
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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.

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Hua-Xing Chen, Atsushi Hosaka, Shi-Lin Zhu. 2007-11-07. Light Scalar Mesons in the QCD Sum Rule. https://doi.org/10.1143/ptps.168.186

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