# Mathematics and Physics of Scattering Amplitudes

##### 21 Augustâ€“15 September 2017

##### S. Stieberger, L. Dixon, C. Duhr, L. Ferro

Scattering amplitudes describe interactions among elementary particles and lie at the heart of physics at high-energy colliders such as the LHC. Developing powerful methods to compute amplitudes is of the utmost importance.

Many amplitudes possess simple forms due to hidden symmetries, which are obscured in traditional methods for computing them, such as Feynman diagrams. A deeper understanding of these symmetries is clearly desirable, for both intrinsic reasons as well as to streamline computations.

Much recent progress has occurred from both formal and phenomenological perspectives. Cross talk between pure mathematics and theoretical physics has been extremely useful, revealing deep connections between modern mathematics and amplitudes in both field theory and string theory.

This programme will bring together experts from both physics and mathematics, in order to advance the field and our understanding of the mathematical structures underlying scattering amplitudes in field and string theory. These insights should lead to novel and powerful tools for computing scattering amplitudes relevant for collider experiments.

The programme is preceded by the programme "Automated, Resummed and Effective: Precision Computations for the LHC and Beyond". If you are planning a consectutive stay in both programmes, please register for both separately. The two weeks minimum participation then applies to your combined stay.