Cross Section ofAnnihilation into Hadrons of Orderin Perturbative QCD
- 14 December 2001
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 88 (1) , 012001
- https://doi.org/10.1103/physrevlett.88.012001
Abstract
We present the first genuine QCD five-loop calculation of the vacuum polarization functions: analytical terms of order alpha(4)(s)n(2)(f) to the absorptive parts of vector and scalar correlators. These corrections form an important gauge-invariant subset of the full omicron(alpha(4)(s)) correction to e(+)e(-) annihilation into hadrons and the Higgs decay rate into hadrons, respectively. They discriminate between different widely used estimates of the full result.Keywords
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