Dear All,

Prof. Lorenzo Magnea of the University of Turin is visiting Nikhef during May and June, in the context of the LHCPhenoNet training network. He will give 8 lectures on infrared aspects of perturbative QCD: 4 next week, and 4 at the end of June.

May 28: 14.00-15.45 , H331 May 29: 14.00-15.45, H331 June: TBA June: TBA

Title and abstract are "Soft and Collinear Gluons in Perturbative QCD"

I will give a general introduction to the problem of infrared and collinear singularities in massless gauge theories, explaining our current understanding and pointing to several applications. Specifically, I will discuss how singularities arise in Feynman diagram calculations, and how they are bypassed to build meaningful physical observables; I will introduce some of the technology needed to prove factorization theorems and to derive Sudakov resummations for physically interesting cross sections; finally, I will describe some recent developments concerning the structure of singularities for general QCD amplitudes to all orders in perturbation theory.

Eric