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Showing 2009 · hep-phShow all
2 papers · 2 filters
hep-ph2009★ 4 cited
SU(3)-symmetry breaking effects and mass splitting in scalar and pseudoscalar mesons from QCD sum rules
H. Y. Jin, J. Zhang, Z. F. Zhang +1
Motivated by the similar mass splitting in light-light and heavy-light meson system in and channel, taking into account the operator mixing to obtain an…
hep-ph2009★ 23 cited
Light scalar mesons in QCD sum rules with inclusion of instantons
J. Zhang, H. Y. Jin, Z. F. Zhang +2
The light scalar meson nonet above 1 GeV ({\it i.e.\}the , and ) are studied within the framework of QCD sum rules. In conventional QCD sum rules, the…