O(α^nα_s^m) Corrections in e^+e^- Annihilation and τDecay

Details O(α^nα_s^m) Corrections in e^+e^- Annihilation and τDecay O(α^nα_s^m) Corrections in e^+e^- Annihilation and τDecay

1998-03-02

arxiv.org/abs/hep-ph/9803211v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Latex, no figures

Scientific paper

The results of evaluation of mixed QED X QCD corrections to R(s) in e^+e^-
annihilation and R_{\tau} in hadronic decay of the \tau lepton to
O(\alpha^n\alpha_s^m), m+n \leq 3, are presented. The net effect on
\alpha_s(M_Z) from the Z decay is only about 0.1% and in the \tau decay case
the net effect is negligible, as expected.

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