Four-loop wave function renormalization in QCD and QED

Autor:	Marquard, Peter, Smirnov, Alexander V., Smirnov, Vladimir A., Steinhauser, Matthias
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	higher-order: 4 wave function: renormalization renormalization: on-shell Heavy Quark Effective Theory quantum chromodynamics quantum electrodynamics anomalous dimension: correction correction: higher-order
DOI:	10.3204/pubdb-2019-00122
Popis:	Physical review / D 97(5), 054032 (2018). doi:10.1103/PhysRevD.97.054032 We compute the on-shell wave function renormalization constant to four-loop order in QCD and present numerical results for all coefficients of the $SU(N_c )$ color factors. We extract the four-loop Heavy Quark Effective Theory anomalous dimension of the heavy-quark field and also discuss the application of our result to QED. Published by APS, Woodbury, NY
Databáze:	OpenAIRE
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