Speaker
Kay Schönwald
Description
The anomalous dimensions of local quark and gluon operators determine the
scaling violations of the deep–inelastic scattering structure functions
and are therefore instrumental in the measurement of the strong coupling constant
and the evolution of the parton densities.
In this talk I present our recalculation of the 2- and 3-loop
anomalous dimensions with the traditional method of off-shell
operator matrix elemements.
I present results in the polarized and unpolarized non-singlet case,
the polarized singlet case, as well as recent progress in extendending the
calculation to the unpolarized singlet case.
| Submitted on behalf of a Collaboration? | No |
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