Could misbehaving muons upend the known laws of physics?
From Discover, June 23, 2021: Muons drew the attention of physicists around the world after an experiment at Fermilab demonstrated that they’re far more magnetic than expected.
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Leptoquarks, the Higgs boson and the muon’s magnetism
From CERN, June 15, 2021: A new study shows a class of new unknown particles that could account for the muon’s magnetism, known as leptoquarks, also affects the Higgs boson’s transformation into muons.
The long journey to a precise muon measurement
From Physics Today, June 1, 2021: How do you transport a 15 000-kilogram magnetic ring with the same width as a basketball court from central Long Island to suburban Chicago? In 2011 Fermilab shut down its particle collider, the Tevatron, which made space to host a project like Muon g – 2, to house the high-intensity proton source that would generate the muons.
The magnetic anomaly of the muon, also a theoretical challenge
From Pour la Science, May 19, 2021: Is the Standard Model of Particle Physics at fault? The comparison of the first results of the Muon g – 2 experiment on the measurement of the anomalous magnetic moment of the muon and the most recent theoretical results does not yet allow a conclusion.
Have Fermilab Scientists Broken Modern Physics?
From Forbes, April 7, 2021: Don Lincoln, senior scientist at Fermilab, explains that a new measurement announced by Fermilab last week goes a long way towards telling us if the venerable theory will need revising.
The long-awaited results of the muon experiment will be announced soon
From China Science News, Yunnan.cn (China), April 1, 2021: The Muon g-2 experiment conducted at the Fermilab will soon announce the results after 20 years of waiting.
The mystery of the muon’s magnetism
A super-precise experiment at Fermilab is carefully analyzing every detail of the muon’s magnetic moment. The Fermilab Muon g-2 collaboration has announced it will present its first result at 10 a.m. CDT on April 7.
Physicists achieve best-ever measurement of fine-structure constant
From Scientific American, Dec. 16, 2020: Researchers have made the most precise measurement of one of the fundamental constants, called the fine-structure constant. Now all eyes are on Fermilab, where the first results of the Muon g-2 experiment are expected to provide the most precise experimental measurement of the muon’s magnetic moment. Alex Keshavarzi, scientist on the Muon g-2 experiment, weighs in on the significance of the measurement.