Possible sum rule technique for calculating trajectories of Regge poles in QCD

QCD sum rules for J/ψ in the nuclear med

QCD sum rules for J/ψ in the nuclear medium: calculation of the Wilson coefficients of gluon operators up to dimension 6

✍ Sungsik Kim; Su Houng Lee 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 279 KB

We calculate the Wilson coefficients of all dimension-6 gluon operators with nonzero spin in the correlation function between two heavy vector currents. For the twist-4 part, we first identify the three independent gluon operators, and then proceed with the calculation of the Wilson coefficients usi