muons

From BBC, March 25. 2021: Physicists have uncovered a potential flaw in a theory that explains how the building blocks of the Universe behave.

From Scientific American, March 25, 2021: Physicists have long wondered if muons, electrons and other leptons possess differences besides their mass; the latest LHCb result; Fermilab and the upcoming results of Muon g-2 test the standard model.

An experiment that will contribute vital knowledge about something deceptively simple – a proton’s spin – will soon come online at Fermilab. The experiment may either begin to validate the “potato salad” model of proton spin or force scientists to develop a new model entirely.

DUNE’s near detector, located at Fermilab, will take vital measurements of neutrino beam energy and composition before it reaches the experiment’s far detector in South Dakota. Its unmatched precision measurements will offer its own opportunities for the discovery of new physics.

From Science & Vie, March 4, 2021: Fermilab was included with other accelerator labs for their discoveries of new particles and materials in this French science magazine.

From Science, Jan. 27, 2021: Physicists await the Muon g-2 experiment’s results, which could come as early as this spring, to see whether they confirm that muons are slightly more magnetic than theory predicts. If so, it will signal new physics. Fermilab scientists discuss the experiment, as well as the secrecy required to blind themselves from affecting the results.

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.

From Bulgarisches Wirtschaftsblatt, Nov. 11, 2020: Während die Wissenschaftler im Fermi National Accelerator Laboratory des US-Energieministeriums auf die mit Spannung erwarteten ersten Ergebnisse des Muon g-2-Experiments warten, setzen die mitarbeitenden Wissenschaftler des Argonne National Laboratory des DOE weiterhin das einzigartige System ein, das das Magnetfeld im Experiment mit beispielloser Präzision abbildet.

Magnets play a key role in looking for the direct transformation of muons into electrons, a theorized phenomenon that Fermilab’s Mu2e experiment will hunt for when it comes online in 2023. In an important milestone, seven essential magnets have passed testing and been accepted for the construction of the experiment.

For five years, a recycled MRI magnet has provided strong magnetic fields for cross-calibration and testing of equipment used in major physics experiments, including the Muon g-2 and Mu2e Fermilab experiments.