Particle Physics Seminar
Wednesday 25th November 2009 at 1:30pm
(tea, coffee and biscuits served at 1:15pm)
Poynting Small Lecture Theatre
Towards Automated NLO Tools
Gudrun Heinrich (Durham)
Experiments at the LHC will allow for the exploration of an energy range
which has never been reached in collider physics up to now.
However, extracting signals of new phenomena and
discriminating between different models is only
possible if the predictions of the Standard Model
and of prominent extensions are known precisely enough.
To this aim higher orders in perturbation theory have to be calculated,
in particular one-loop amplitudes for multi-particle production.
This should be done in a largely automated way,
to provide tools similar to the leading order tools
we have at hand today.
The talk will give an overview of what has been achieved
in this field recently and present a
general framework for automated next-to-leading order calculations.
Examples including direct photon production and
ZZ+jet production at NLO will be discussed.