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Event Detail Information

Second Annual Dr. William D. Watson Memorial Lecture: "Muon anomalous magnetic moment and new physics below the weak scale"


Maxim Pospelov, University of Victora, Perimeter Institute

Date Apr 8, 2015
Time 4:00 pm  

141 Loomis




Dr. William D. Watson Memorial Lecture


Stephanie Johansson

Phone 217-300-4241
Event type Physics Colloquium
Views 19
Originating Calendar Physics - Colloquium

Precision measurements of the muon anomalous magnetic moment from the decade-old BNL experiment have revealed an intriguing excess relative to the theoretical calculations of the same quantity. I review the status of this 3-sigma discrepancy, and zoom onto the New Physics explanations that it has generated. The discrepancy may be a hint of new massive particles near the electroweak scale, a possibility that comes under the increasing pressure from the LHC results, which so far show no signs of new physics. An alternative possibility, which has been in focus of my research for some time, is the correction to the muon anomaly from a light, MeV-to-GeV range, very weakly coupled New Physics sector. I review the status of this explanation in light of new experimental searches of the so-called "dark photon", discussing a few remaining viable options and new proposals for their future experimental tests. 

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