UV contribution and power dependence on ${\Lambda }_{\mathrm{QCD}}$ of Adler function

Abstract

We formulate a way to separate UV and IR contributions to the Adler function and discuss how ${\Lambda }_{\mathrm{QCD}}^2/Q^2$ dependence is encoded in the UV contribution within perturbative QCD.

Comments: 10 pages, 5 figures. v3: minor modifications