Title of article
Heavy quark current correlators to O(αs2 Original Research Article
Author/Authors
K.G. Chetyrkin، نويسنده , , J.H. Kühn، نويسنده , , M. Steinhauser، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1997
Pages
25
From page
40
To page
64
Abstract
In this paper the three-loop polarization functions Π(q2) are calculated for the cases of an external vector, axial-vector, scalar or pseudo-scalar current. Results are presented for the imaginary part which directly leads to the cross section σ(e+e− → Z → hadrons) and to the Higgs decay rates, respectively.
Keywords
* Quantum chromodynamics , * Padé approximation , * Current correlators , * Multiloop calculation
Journal title
Nuclear Physics B
Serial Year
1997
Journal title
Nuclear Physics B
Record number
880297
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