Adler function from R^{e^+e^-} measurements: experiments vs QCD theory

Details Adler function from R^{e^+e^-} measurements: experiments vs QCD theory Adler function from R^{e^+e^-} measurements: experiments vs QCD theory

1999-06-29

arxiv.org/abs/hep-ph/9906534v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contributed to the Proceedings of the International Workshop "e^+e^--collisions from $\phi$ to $J/\Psi$, Novosibirsk, May 1-5,

Scientific paper

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 $b$-quark mass-dependent $\alpha_s^2$-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 $e^+e^-\to{hadrons}$, particularly in the region $E

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