Event calendar file
5-9 September 2011
Europe/London timezone
Regularization Schemes and Higher Order Corrections
Presented by William KILGORE
on
5 Sep 2011
from
14:50
to
15:15
Type: Parallel talk
Track: Track 3: Computations in Theoretical Physics - Techniques and Methods
Content
I apply commonly used regularization schemes to a multiloop
calculation to examine the properties of the schemes at higher orders.
I find complete consistency between the conventional dimensional
regularization scheme and dimensional reduction, but I find that the
four-dimensional helicity scheme produces incorrect results at
next-to-next-to-leading order and singular results at
next-to-next-to-next-to-leading order. It is not, therefore, a
unitary regularization scheme.
