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arXiv · 1206.1284

Vector Correlator in Massless QCD at Order O(alpha_s^4) and the QED beta-function at five loop

P. A. Baikov·K. G. Chetyrkin·J. H. Kühn·J. Rittinger
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Abstract

We present a concise summary of recent results for the vector correlator in massless QCD at order ${\cal O}(α_s^4)$, with all colour factors being given for a generic colour group. As a direct consequence we arrive at: (i) the full QCD contribution to the QED $β$--function of order $α^2\, α_s^4$ in the MSbar- and MOM-schemes; (ii) the full five-loop result of order $α^6$ for the $β$-function of QED with a generic number of single-charged fermions, again for the MSbar- and MOM-schemes.

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P. A. Baikov, K. G. Chetyrkin, J. H. Kühn, J. Rittinger. 2012-10-10. Vector Correlator in Massless QCD at Order O(alpha_s^4) and the QED beta-function at five loop. https://doi.org/10.1007/jhep07(2012)017

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