MS Versus Pole Masses of Gauge Bosons II: Two-Loop Electroweak Fermion Corrections
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
We have calculated the fermion contributions to the shift of the position of the poles of the massive gauge boson propagators at two-loop order in the Standard Model. Together with the bosonic contributions calculated previously the full two-loop corrections are available. This allows us to investigate the full correction in the relationship between MS and pole masses of the vector bosons Z and W. Two-loop renormalization and the corresponding renormalization group equations are discussed. Analytical results for the master-integrals appearing in the massless fermion contributions are given. A new approach of summing multiple binomial sums has been developed.
Cite
@article{arxiv.hep-ph/0212319,
title = {MS Versus Pole Masses of Gauge Bosons II: Two-Loop Electroweak Fermion Corrections},
author = {F. Jegerlehner and M. Yu. Kalmykov and O. Veretin},
journal= {arXiv preprint arXiv:hep-ph/0212319},
year = {2009}
}
Comments
62 pages, LaTeX, 18 eps-figures, version to appear in Nucl.Phys.B