HEP-Astro Seminar | The Anomalous Magnetic Moment of the Muon

https://umich.zoom.us/j/91409362110?pwd=UDlja2FuYlZWVFNEMWFrOTlkWFNEZz09

The difference between experiment and Standard-Model theory for the anomalous magnetic moment of the muon is, at 4.2 standard deviations, an important hint for new physics. The Fermilab E989 experiment, which released their first measurement result in 2021, and the planned J-PARC E34 experiment aim to reduce the experimental uncertainties by a factor of four. To leverage this anticipated improvement in experimental precision, and determine unambiguously whether or not new-physics effects contribute to this quantity, the theoretical errors must be made more reliable and reduced to a commensurate level. The Muon g-2 Theory Initiative was formed in 2017 to provide platforms that facilitate interactions between the different groups to consolidate the Standard-Model prediction and map out strategies for reducing the theory errors to keep pace with experiment. I will review the current status of Standard Model theory for this quantity and map out the future prospects.