High-precision four-loop mass and wave function renormalization in QED
Stefano Laporta (Dipartimento di Fisica e Astronomia, Università di Padova, Istituto Nazionale Fisica Nucleare, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Italy)
The 4-loop QED mass and wave function renormalization constants and have been evaluated in the on-shell subtraction scheme with 1100 digits of precision. We also worked out the coefficients of the five color structures of the QCD renormalization constants and which can be obtained from QED-like diagrams. The results agree with lower precision results available in the literature. Analytical fits were also obtained for all these quantities.