Operator Product Expansion in QCD: ``Kinematic operators''
University of Regensburg
Wed, Apr. 25th 2012, 14:15
Salle Claude Itzykson, Bât. 774, Orme des Merisiers
Huge progress in experimental techniques has made possible an observation of (rare) processes where all contributing hadrons are identified and a large momentum is transferred to a hadronic system. The hopes are that in this way one can get access to ``holographic'' images of the proton as two-dimensional slices in transverse plane for a given momentum fraction. One of the theory challenges in this program appears to be to calculate the contributions to correlation functions of suitable currents of all operators that are related to the leading-twist ones by adding total derivatives. I explain how this problem is solved using conformal symmetry.
Contact : ccaprini