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arXiv · 1209.4102

A Laplace Sum-Rules Analysis of Heavy Pseudoscalar ($J^{PC}=0^{-+}$) Hybrids

D. Harnett·R. Berg·R. T. Kleiv·T. G. Steele
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Abstract

We use QCD sum-rules to predict ground state masses for pseudoscalar ($J^{PC}=0^{-+}$) charmonium and bottomonium hybrids. We find that the inclusion of a six-dimensional gluon condensate contribution is needed to stabilize the analyses. For the charmonium hybrid, we find a mass of $(3.82\pm0.13)$ GeV; for the bottomonium hybrid, we find a mass of $(10.64\pm0.19)$ GeV. We comment on possible phenomenological implications concerning the Y(3940).

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D. Harnett, R. Berg, R. T. Kleiv, T. G. Steele. 2012-09-18. A Laplace Sum-Rules Analysis of Heavy Pseudoscalar ($J^{PC}=0^{-+}$) Hybrids. https://doi.org/10.1016/j.nuclphysbps.2012.12.004

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