Seminars



Wednesday, 20 February, 2019 - 14:30 - 15:30
Aula Grassano

Prof. Emilian Dudas (École Polytechnique)

Title: Testing the Swampland Conjectures




Friday, 22 February, 2019 - 14:30 - 15:30
Aula Grassano

Prof. Gabriele Travaglini (QMUL, Londra, UK)

Title: Form factors, Higgs amplitudes and secret symmetries

Abstract: When the result of a complicated calculation turns out to be remarkably simpler than one expects from the complexity of intermediate steps, and the amount of time and paper devoted to the calculation itself,  one can rightly suspect there is something about the theory we are studying that we do not fully understand. This is the situation encountered often  in scattering amplitudes of elementary particles, and some related quantities known as form factors - they display a fascinating, mysterious simplicity, in particular when the calculations are performed in an idealised model such as  N=4 supersymmetric Yang-Mills theory. To add to the mystery some of the quantities computed in the model theory N=4 super Yang-Mills turn out to be intimately related  to physical scattering amplitudes which describe Higgs + multi-gluon processes in nature which are of central importance for CERN’s Large Hadron Collider.  A notion a universality seems to emerge in the computations described, and I will discuss possible further connections to processe involving the Higgs boson. A hidden symmetry of form factors - dual conform symmetry - will also be discussed. 




Wednesday, 27 March, 2019 - 14:30 - 15:30
Aula Grassano

Prof. Anastasios Petkou (University of Thessaloniki)

Title: The thermal CFT bootstrap