An Anomaly in an Anomaly: New Results from the Fermilab Muon g-2 Experiment

An Anomaly in an Anomaly: New Results from the Fermilab Muon g-2 Experiment
David Kawall, University of Massachusetts, Amherst
Date and time: Wed, May 05, 2021 - 4:00pm
Location: Zoom only
Category: Departmental Colloquium
Abstract:

The muon has played an important role in the development of particle physics since its discovery in 1936. Muons are structureless so their properties can be predicted with impressive precision using sophisticated techniques of modern particle physics theory. Results from a measurement at Fermilab of the magnetic moment anomaly of the muon were just released, and in combination with a prior result, differ significantly from expectations. The difference might be due to new physics with new particles that influence the results of the measurement but are not included in the Standard Model (SM) prediction. Tension also exists between different approaches to the SM prediction that might explain this anomaly in an anomaly. Details of the intricate experiment at Fermilab and how you make a measurement to 8 significant figures will be described.