[Jlab-seminars] Today's Physics Seminar: David Flay; High-Precision Measurements of Muon g-2 at Fermilab

[Stephanie Tysor]

Physics Seminar

David Flay

University of Massachusetts, Amherst





High-Precision Measurements of Muon g-2 at Fermilab



Abstract:



The anomalous magnetic moment of the muon, characterized as the anomaly aμ ≡ (g-2)/2, remains a compelling hint of physics beyond the Standard Model (BSM) in light of the Brookhaven E821 measurement from the early 2000s, which differs with theoretical predictions by >3σ.  To address this discrepancy, the Muon g-2 Experiment at Fermilab (E989) has been designed to determine aμ to a precision of 140 parts per billion, a four-fold improvement over the E821 measurement.  This improved precision presents an excellent opportunity to uncover BSM physics, and at minimum constrain BSM prescriptions.



To date, the E989 experiment has completed its first two physics runs, recording more than 3 times the statistics recorded in the E821 experiment.  A third physics run started in November 2019, with the goal of accumulating a factor of three more data than the previous runs combined, resulting in an order of magnitude more statistics than the Brookhaven measurement.  An overview of the experimental technique will be discussed, along with a summary of the physics operations running to date.  Additionally, an update on the analysis of the Run 1 data will be presented.







Thursday, January 16, 2020

9:00am

CEBAF Center L102



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