Challenges in calculations for multi-particle processes

Details Challenges in calculations for multi-particle processes Challenges in calculations for multi-particle processes

2004-10-13

arxiv.org/abs/hep-ph/0410189v1

Acta Phys.Polon. B35 (2004) 2601-2615

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages. Presented at the final meeting of the European Network ``Physics at Colliders'', Montpellier, September 26-27, 2004

Scientific paper

The physics of high-energy collider experiments asks for delicate comparisons between theoretical predictions and experimental data. Signals and potential backgrounds for new physics have to be predicted at sufficient accuracy. The accuracy as well as the computational complexity of the calculations leading to the predictions depend on both the number of external particles in the process analyzed and the order of the quantum corrections, the number of loops, included in the calculation. We present some approaches to problems occurring in these calculations regarding the integration of phase-space and the inclusion of one-loop corrections.

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