Asymptotic behavior of perturbation theory for the electromagnetic current-current correlation function in QCD

15 January 1992

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 45 (2) , R398-R402
https://doi.org/10.1103/physrevd.45.r398

Abstract

A simple and direct approach is used to examine the constraints imposed by asymptotic freedom and analyticity on the large-order behavior of perturbation theory for the current-current correlation function and its imaginary part which gives the

R

ratio in high-energy

e^{+} - e^{-}

annihilation.

Keywords

This publication has 3 references indexed in Scilit:

Asymptotic estimate of then-loop QCD contribution to the total $e^{+}$ $e^{-}$ annihilation cross section
Physical Review Letters, 1991
On the structure of infrared renormalons in physical processes at high energies
Nuclear Physics B, 1985
On the ambiguity of composite operators, IR renormalons and the status of the operator product expansion
Nuclear Physics B, 1984