др Игор Прлина

15. маја 2023.

У оквиру семинара Групе за гравитацију, честице и поља Института за физику у Београду, у четвртак, 18. маја 2023. године у 15 часова, на Физичком факултету у Београду, у сали 665, др Игор Прлина (Институт за физику у Београду) одржаће предавање:

Amplitugicians: Using (non-magic) Tricks to Find Scattering Amplitudes


This talk will introduce the audience to the goals and methods of the so-called Amplitudes project, where alternatives to the Feynman diagram approach are used to calculate scattering amplitudes in different theories. Some common themes in the Amplitudes approach are symmetry adapted variables, recursive relations and geometric interpretation. These themes will be illustrated by introducing spinor helicity formalism, BCFW recursion, momentum twistors, and the Amplituhedron. Finally, some of the lecturer’s own results on the connection of the boundaries of the Amplituhedron with amplitude singularities will be presented.