Adler function from R^{e^+e^-} measurements: experiments vs QCD theory
Abstract
An experimental motivated QCD analysis of the behaviour of the Adler D-function in the Euclidian region is described. It is stressed that by taking account of -quark mass-dependent -effects one obtains better agreement between theoretical predictions and experimentally motivated behaviour of the D-function at large Euclidian momentum transfer. A more detailed analysis of QCD predictions, including information on quark and gluon condensates, requires more precise data on , particularly in the region and . use of experimental determination of the D-function to test the generalized Crewther relation is outlined.
Keywords
Cite
@article{arxiv.hep-ph/9906534,
title = {Adler function from R^{e^+e^-} measurements: experiments vs QCD theory},
author = {A. L. Kataev},
journal= {arXiv preprint arXiv:hep-ph/9906534},
year = {2007}
}
Comments
Contributed to the Proceedings of the International Workshop "e^+e^--collisions from $\phi$ to $J/\Psi$, Novosibirsk, May 1-5, 1999; Presented at the 9th Lomonosov Conference on Elementary Particle Physics, September 20-26, 1999, MSU, Moscow; LaTeX, npb.sty, 2 eps figures included; English style of Abstract and text of the previous version is improved, few referencies are corrected