Argonne National Laboratory

Precision Muon Physics

Precision Muon Physics

One avenue to search for particles far too heavy to be discovered at the CERN Large Hadron Collider is to investigate the properties of known particles with great precision.

The muon, a heavy cousin of the electron, is well-suited for precision studies due to its relatively long lifetime and large mass. 

The Muon Group at Argonne is working on the design and construction of two experiments at Fermilab that will push the limits of precision measurements. The Muon g-2 experiment, scheduled to begin taking data in 2017, will measure the anomalous magnetic moment of the muon to unprecedented precision. A deviation from the predicted value would be indicative of new physics.

The Mu2e experiment, scheduled to begin taking data in 2021, is designed to detect the conversion of a muon to an electron without producing any neutrinos, a process heretofore unseen. If this flavor violating process were observed, it would be a direct indication of new physics beyond the Standard Model.