Scattering Amplitudes and Riemann Surfaces


Cachazo, F. (2015). Scattering Amplitudes and Riemann Surfaces. Perimeter Institute. https://pirsa.org/15050055


Cachazo, Freddy. Scattering Amplitudes and Riemann Surfaces. Perimeter Institute, May. 27, 2015, https://pirsa.org/15050055


          @misc{ pirsa_15050055,
            doi = {},
            url = {https://pirsa.org/15050055},
            author = {Cachazo, Freddy},
            keywords = {Mathematical physics},
            language = {en},
            title = {Scattering Amplitudes and Riemann Surfaces},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {may},
            note = {PIRSA:15050055 see, \url{https://pirsa.org}}


In 2003 Witten introduced twistor string theory as a novel description of the scattering matrix of the maximally supersymmetric Yang-Mills theory in four dimensions. In these lectures I will give an introduction to the developments that have led to new formulations, also based on Riemann surfaces, of a large variety of theories, with and without supersymmetry, in arbitrary space-time dimensions.