Dresden 2013 – scientific programme

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T: Fachverband Teilchenphysik

T 6: Eingeladene Vorträge 1

T 6.2: Semi-Invited Talk

Tuesday, March 5, 2013, 14:15–14:45, HSZ-01

New methods for perturbative QCD and theories of quantum gravity — •Harald Ita — Albert Ludwigs University of Freiburg, Germany

Theory predictions play an important role for unlocking the exciting new physics at the LHC experiments. However, the required simulations of proton-proton collisions are often very challenging: most interesting processes involve decays into a large number of final state particles and, in addition, precision requirements make computations of quantum corrections necessary.

Stimulated by the physics program at the LHC, significant progress has been made with such computations recently. An important ingredient for these successes is the inflow of new ideas and methods from formal quantum-field theory. Many previously unthinkable computations are now becoming available and are increasing the reach of the experiments at CERN. In the opposite direction, methodology developed for describing LHC physics provides a new handle on formal quests. When applied to the quantization of gravity surprising structures become manifest, which make this theory look very similar to the well behaved quantum theories of particle physics. The interpretation of these clues and their implication for a consistent quantization of gravity are presently actively pursued in the research community.

In this talk we discuss this interplay of recent developments in perturbative quantum-field theory, state-of-the-art simulations of LHC physics and formal considerations in theories of gravity.