UV Completions of the Standard Model at the LHC

Tilman Plehn

University of Edinburgh

Wed, Mar. 19th 2008, 14:15

Salle Claude Itzykson, Bât. 774, Orme des Merisiers

Future collider experiments, and in particular the LHC, are machines designed to probe electroweak symmetry breaking and TeV scale physics. If there should be a light Higgs boson, we expect some mechanism to stabilize its mass. The LHC is the perfect machine to test such TeV-scale extensions of the Standard Model. Giving examples in the frameworks of TeV-scale supersymmetry and large extra dimensions I will show how at the LHC we should be able to measure masses and quantum numbers of new particles, which would allow us to study the Lagrangian of a possible ultraviolet completions of the Standard Model. I will also illustrate how the highly complex theoretical and experimental situation at the LHC requires us to properly formulate our model hypotheses and to ask well-defined questions to finally get the answers we have been waiting for so long.