A QCD sum rule study of the light scalar mesons

Details A QCD sum rule study of the light scalar mesons A QCD sum rule study of the light scalar mesons

2005-12-16

arxiv.org/abs/hep-ph/0512212v3

Eur.Phys.J.A30:423-426,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures, changed title, revised manuscript

Scientific paper

10.1140/epja/i2006-10104-y

We examine the interpretation of the light scalar meson nonet as bound states
of the scalar diquark and the scalar antidiquark using the QCD sum rule
approach. Our results are obtained by means of the operator product expansion
(OPE) including operators up to dimension 8. They show no evidence of the
coupling of the tetraquark states to the light scalar meson nonet.

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