Radiative correction of the correlator for (0^{++},1${}^{-+}$) light hybrid

Abstract

We calculate the radiative corrections to the current-current correlator of the hybrid current $g\bar{q}(x){\gamma }_{\nu }i{G}_{\mu \nu }^a{T}^{a}q(x)$. Based on this new result we use the QCD sum rule approach to estimate lower bounds on the masses of the $J^{PC}$=$1^{-+}$ and $0^{++}$ light hybrids.

Comments: References added and Text improved