2 research outputs found
Axial Vector Charmonium and Bottomonium Hybrid Mass Predictions with QCD Sum-Rules
Axial vector charmonium and bottomonium hybrid masses are
determined via QCD Laplace sum-rules. Previous sum-rule studies in this channel
did not incorporate the dimension-six gluon condensate, which has been shown to
be important for and heavy quark hybrids. An updated analysis
of axial vector charmonium and bottomonium hybrids is presented, including the
effects of the dimension-six gluon condensate. The axial vector charmonium and
bottomonium hybrid masses are predicted to be 5.13 GeV and 11.32 GeV,
respectively. We discuss the implications of this result for the
charmonium-like XYZ states and the charmonium hybrid multiplet structure
observed in recent lattice calculations.Comment: 10 pages, 7 figures. Updated to match published versio