Lepton Universality violation, a promising approach towards new physics beyond the Standard Model

Speaker: 
Guy Wormser (LAL, Orsay)
Event Date and Time: 
Thu, 2017-09-28 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Janis McKenna
Intended Audience: 
Undergraduate

The Standard Model of particle physics, one of the most remarkable theoretical construction of the XX century, has a very precise prediction power for all man-made experiments using accelerators. Although it is almost certain, for reasons that will be explained in this talk, that the SM is not the final theory, it resists up to now to all attempts to discover any deviation from its predictions that could show  the path towards a more complete theory. However, one of its most solid predictions,  namely that all charged leptons (the electron and its two heavier cousins, the muon and the tau) should behave exactly in the same way (a property called lepton universality) is currently challenged by recent results, notably from the LHCb experiment at CERN. We will explain how it is possible to search for a lepton universality violation, the critical importance  of such a potential violation, and future prospects in this area.

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