Eur. Phys. J. C 18, 673-679
DOI: 10.1007/s100520100573
Facts of life with
F. JegerlehnerDeutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany
(Received: 13 September 2000 / Published online: 5 February 2001 -© Springer-Verlag 2001)
Abstract
The increasing precision of many experiments in elementary particle
physics leads to continuing interest in perturbative higher order
calculations in the electroweak Standard Model or extensions of it.
Such calculations are of increasing complexity because more loops
and/or more legs are considered. Correspondingly efficient
computational methods are mandatory for many calculations. One problem
which affects the feasibility of higher order calculations is the
problem with in dimensional regularization. Since the subject
thirty years after its invention is still controversial I advocate
here some ideas which seem not to be common knowledge but might shed
some new light on the problem. I present arguments in favor of
utilizing an anticommuting and a simple 4-dimensional treatment
of the hard anomalies.
© Società Italiana di Fisica, Springer-Verlag 2001