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Colloquium
The mysterious muon
Aida El-Khadra, University of Illinois
Location: Online
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Synopsis
More than eighty years after the muon was first discovered, it is still a source of mystery. Indeed, several experiments are underway or planned that use muons as a window to search for new physics ��� a central goal of the high energy physics community. In an exciting development, the recent announcement by the Fermilab experiment of it's first measurement result sharpens the long-standing tension between experiment and theory for the muon���s magnetic moment to 4.2 standard deviations. The Fermilab experiment's measurement uncertainty will continue to improve, with the ultimate goal of reducing it by a factor of four. In addition, a planned experiment in Japan will provide a completely independent measurement of this quantity. After a brief tour of its history, I will discuss the ongoing interplay between theory and experiment that is essential for unlocking the discovery potential of this effort.