Light Scalar Mesons in the QCD Sum Rule

Details Light Scalar Mesons in the QCD Sum Rule Light Scalar Mesons in the QCD Sum Rule

2007-11-07

arxiv.org/abs/0711.1007v1

Prog.Theor.Phys.Suppl.168:186-189,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure. Talk given at the Yukawa International Seminar (YKIS) 2006, "New frontiers in QCD", Kyoto, Japan, 20 Nov. -

Scientific paper

10.1143/PTPS.168.186

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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