Muon g-2

The 50-foot-wide superconducting electromagnet at the center of the experiment saw its first beam of muon particles from Fermilab’s accelerators, kicking off a three-year effort to measure just what happens to those particles when placed in a stunningly precise magnetic field. The answer could rewrite scientists’ picture of the universe and how it works.

From Nature, April 11, 2017: Fermilab’s Muon g-2 experiment will measure the muon’s magnetic moment with unparalleled precision, perhaps revealing unknown virtual particles.

On Tuesday, August 2, 2016 there will be a series of seminars on the Muon g-2 FNAL experiment for the Italian Summer Students, but open to all students and interested persons. The program follows: The Muon g-2 Experiment Training lectures for the students of the Summer School “Summer Students at Fermilab and other US laboratories” (Fermilab, INFN and the University of Pisa) Tuesday, August 2 – Comitium – Wilson Hall 9:00 –   9:40  C. Polly, “Overview of the Muon g-2… More »

The Muon g-2 experiment will measure of the strength of the magnetic field of a subatomic particle called a muon. If the measurement doesn’t overlap with the predicted value, it could point to the scientific community’s next big breakthrough, and we may have to rewrite the textbooks.

It survived a month-long journey over 3,200 miles, and now the delicate and complex electromagnet is well on its way to exploring the unknown. The Muon g-2 ring has successfully cooled down to operating temperature and powered up, proving that even after a decade of inactivity, it remains a vital and viable scientific instrument.

The Muon g-2 experiment at Fermilab is under construction in the new MC-1 building. It aims to measure with unprecedented precision — 140 parts per billion — a property of the muon called the anomalous magnetic dipole moment. The effort will improve upon the famous experiment at Brookhaven National Laboratory, which finished data taking in 2001. The new Fermilab experiment aims to improve the precision with 20 times more data and by reducing key systematic uncertainties. These factors significantly affect… More »