Journal Club: Latest measurements from Fermilab's muon g-2 experiment

Fri., May. 7, 2021 3:30 p.m. - Fri., May. 7, 2021 4:30 p.m.

Location: Zoom

Abstract: Our understanding of elementary particles and their fundamental interactions is summarized in the Standard Model (SM) of Elementary Particles. It predicts precisely the muon g-factor, whose value reveals the behavior of this fundamental particle in a magnetic field. In 2004, the Brookhaven National Laboratory's E821 experiment showed that the muon g-2 differs by a few parts per million from the theoretical prediction. On April 7th, 2021, the Muon g-2 experiment at the Fermilab National Accelerator Laboratory announced its first-ever run results, about 3.3 standard deviations larger than the SM prediction, which agrees with the E821 Experiment. The combined results of the two experiments show a difference of 4.2 sigma from the SM, slightly lower than the 5 sigma required for scientific discovery. Overall, the exploration of the muon g-2 will provide a better understanding of the properties of muon and use them to probe the SM of Particle Physics. Our discussion shall focus mainly on the status of the muon g-2, instrumentation overview, analysis technique of the Fermilab’s Muon g-2 experiment, and its possibilities of new physics discoveries.

Journal Article "Measurement of the anomalous precession frequency of the muon"

Speaker: Eric Gyabeng Fuakye, University of Regina