CERN Colloquium

"New Tools for Forecasting Old Physics at the LHC"

Name: "New Tools for Forecasting Old Physics at the LHC"
Start: 2011-01-20T16:30:00+01:00
End: 2011-01-20T17:30:00+01:00
Location: CERN

by Prof. Lance Dixon (SLAC)

Thursday 20 Jan 2011, 16:30 → 17:30 Europe/Zurich

503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber

CERN

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Description

For the LHC to uncover many types of new physics, the "old physics" produced by the Standard Model must be understood very well. For decades, the central theoretical tool for this job was the Feynman diagram expansion. However, Feynman diagrams are just too slow, even on fast computers, to allow adequate precision for complicated LHC events with many jets in the final state. Such events are already visible in the initial LHC data. Over the past few years, alternative methods to Feynman diagrams have come to fruition. These new "on-shell" methods are based on the old principles of unitarity and factorization. They can be much more efficient because they exploit the underlying simplicity of scattering amplitudes, and recycle lower-loop information. I will describe how and why these methods work, and present some of the recent state-of-the-art results that have been obtained with them.

Organised by

Ignatios Antoniadis/PH-TH......................Tea and Coffee will be served at 16:00

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"New Tools for Forecasting Old Physics at the LHC"

by Prof. Lance Dixon (SLAC)

503/1-001 - Council Chamber

CERN