Enter Fermilab, where a new campus dedicated to the study of muons was being built.
“It opened up a world of possibilities,” Dr. recalled. Polly in his biographical article. At that time, Dr. Polly worked at Fermilab; he and his colleagues could repeat the g-2 experiment there, with more precision. He became the project manager for the experiment.
However, to conduct the experiment, they needed a racetrack with a 50-foot magnet from Brookhaven. And so in 2013, the magnet went on an odyssey of 3,200 miles, mostly by barge, down the East Sea, around Florida and along the Mississippi River, then by truck across Illinois to Batavia, home of Fermilab.
The magnet resembled a flying saucer and drew attention as they drove south across Long Island at 10 miles per hour. “I walked and talked to people about the science we do,” wrote Dr. Polly. “Moving through the suburbs of Chicago to Fermilab provided another chance to reach. He stayed in the Costco parking lot overnight. More than a thousand people came out to see and hear about science. “
The experiment began in 2018 with a more intense muon beam and aims to collect 20 times more data than the Brookhaven version.
Meanwhile, in 2020, it was published by a group of 170 experts known as the Muon g-2 Theory Initiative a new consensus value of the theoretical value of the magnetic moment of a muon, based on three-year workshops and calculations using the Standard Model. That response reinforced the initial discrepancy reported by Brookhaven.
By telephone contact Monday, Aida X. El-Khadra, a physicist at the University of Illinois and co-chair of the Muon g-2 Theory Initiative, said they had waited a long time for this result.
“Before, I didn’t feel like I was sitting on charcoal,” she said.
On the day of Fermilab’s announcement, another group, using a different technique known as grid calculation to calculate the magnetic moment of muons, received a different response from the group of others. El-Khadra.