Enter Fermilab, the place a brand new campus dedicated to finding out muons was being constructed.
“That opened up a world of risk,” Dr. Polly recalled in his biographical article. By this time, Dr. Polly was working at Fermilab; he and his colleagues might redo the g-2 experiment there, with extra precision. He turned the undertaking supervisor for the experiment.
To conduct the experiment, nevertheless, they wanted the 50-foot magnet racetrack from Brookhaven. And so in 2013, the magnet went on a 3,200-mile odyssey, largely by barge, down the Japanese Seaboard, round Florida and up the Mississippi River, then by truck throughout Illinois to Batavia, residence of Fermilab.
The magnet resembled a flying saucer, and it drew consideration because it was pushed south throughout Lengthy Island at 10 miles per hour. “I walked alongside and talked to individuals in regards to the science we have been doing,” Dr. Polly wrote. “Transferring it by the Chicago suburbs to Fermilab supplied one other probability for outreach. It stayed over one night time in a Costco car parking zone. Nicely over a thousand individuals got here out to see it and listen to in regards to the science.”
The experiment began up in 2018 with a extra intense muon beam and the objective of compiling 20 occasions as a lot information because the Brookhaven model.
In the meantime, in 2020, a gaggle of 170 consultants referred to as the Muon g-2 Principle Initiative revealed a brand new consensus worth of the theoretical worth of muon’s magnetic second, primarily based on three years of workshops and calculations utilizing the Commonplace Mannequin. That reply bolstered the unique discrepancy reported by Brookhaven.
Reached by cellphone on Monday, Aida X. El-Khadra, a physicist on the College of Illinois and a co-chair of the Muon g-2 Principle Initiative, stated that they had been ready for this end result for a very long time.
“I’ve not had the sensation of sitting on sizzling coals earlier than,” she stated.
On the day of the Fermilab announcement one other group, utilizing a distinct method referred to as a lattice calculation to compute the muon’s magnetic second, obtained a distinct reply than Dr. El-Khadra’s group.