Mass predictions for pseudoscalar (JPC=0^-+) charmonium and bottomonium hybrids in QCD sum-rules

Kartashkin V.A., Abashidze A.Kh.

Stevens M.H., Siskind D.E., Deaver L.E., Hervig M.E., Marshall B.T., Russell J.M., Sheese P.E., Llewellyn E.J., Gattinger R.L., Hffner J.