Analysis the $0^{++}$ nonet mesons as four-quark states with the QCD sum rules

Details Analysis the $0^{++}$ nonet mesons as four-quark states with the QCD sum rules Analysis the $0^{++}$ nonet mesons as four-quark states with the QCD sum rules

2005-03-31

arxiv.org/abs/hep-ph/0503297v2

J.Phys.G31:971-979,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, revised version

Scientific paper

10.1088/0954-3899/31/8/025

In this article, we take the point of view that the $0^{++}$ nonet mesons below $1 GeV$ are diquark-antidiquark states $(qq)_{\bar{3}}(\bar{q}\bar{q})_3$, and devote to determine their masses in the framework of the QCD sum rules approach with the interpolating currents constructed from scalar-scalar type and pseudoscalar-pseudoscalar type diquark pairs respectively. The numerical results indicate that the $0^{++}$ nonet mesons may have two possible diquark-antidiquark substructures.

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