M. E. Bracco

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hep-ph2006

Reply to ``Reply to comment on A QCD sum rule study of the light scalar mesons"

M. E. Bracco, F. S. Navarra, M. Nielsen

This paper has been withdrawn by the authors. We have discovered an error in the evaluation of the diagram, which invalidates our conclusion.

hep-ph2005

Diquark-Antidiquark with open charm in QCD sum rules

M. Nielsen, R. D. Matheus, F. S. Navarra +2

Using the QCD sum rule approach we investigate the possible four-quark structure of the recently observed charmed scalar mesons $D_{0}^{0} (2308)$ (BELLE) and $D_{0}^{0, +} (2405)$ (FOCUS…