Ground State Mass Predictions of Heavy-Light Hybrids from QCD Sum-Rule Analysis ($J^P=\left\{0^{\pm },1^{\pm }\right\}$)

Abstract

We present QCD Laplace sum-rule predictions of ground state masses of heavy-light open-flavour hybrid mesons. Having computed leading-order diagonal correlation functions, including up to dimension six gluon condensate contributions, we extract hybrid mass predictions for all $J^P\in \{0^{\pm },1^{\pm }\}$, and explore possible mixing effects with conventional meson states. Similarities are found in the mass hierarchy in both charm and bottom systems with some exceptions that are discussed.

Comments: 6 pages, 8 tables, 2 figures. Proceedings article for the 20th High-Energy Physics International Conference in Quantum Chromodynamics (QCD17) in Montpellier, France July 3-7 2017