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Muon g − 2 (pronounced "gee minus two") is a particle physics experiment at Fermilab to measure the anomalous magnetic dipole moment of a muon to a precision of 0.14 ppm, [1] which is a sensitive test of the Standard Model. [2]
The experiment's aim was to test quantum electrodynamics, a theory elaborated in the 1940s to describe the effect of the electromagnetic force on charged subatomic particles such as electrons or muons. Among other things, it predicted an anomalously high value, slightly above 2, for the muon's magnetic moment 'g', hence the name of the experiment.
5 wrz 2023 · The Muon g-2 experiment at Fermilab aims to measure the muon magnetic moment anomaly, aμ = (g − 2)/2, with a final accuracy of 140 parts per billion. The experiment’s first result from the 2018 dataset, Run 1, was published in 2021 and confirmed the previous result obtained at Brookhaven National Laboratory with a similar sensitivity.
The experiment was to test quantum electrodynamics, a theory elaborated in the 1940s to describe the effect of the electromagnetic force on charged subatomic particles such as electrons or muons.
The muon g-2 Experiment at Fermilab C. Ferrari - The muon g-2 Experiment –IPA2022 2 8 Countries, 35 Institutions, 190 Collaborators Outline: • Brief introduction to am • Experiment description • Calculating the am • Status and outlook Low energy, high Intensity experiment Small scale detectors and collaborations, very high statistics
The Muon g-2 experiment measures what happens as muons circulate through a 50-foot-diameter electromagnet storage ring. The muons, which have intrinsic magnetism and spin (sort of like spinning toy tops), start off with their spins aligned with their direction of motion.
9 kwi 2021 · The Muon g-2 experimenters examine the precession of muons that are subjected to a magnetic field. The main goal is to test the Standard Model's predictions of this value by measuring the precession rate experimentally to a precision of 0.14 parts per million.
