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The Subatomic Keys to the Universe

Surprising new data from the Muon g-2 experiment are turning the classical model on its head

Colorful fission of particle in collider, computer generated abstract background, 3D rendering

SA Space & Physics June/July 2021; Getty Images (cover background)


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In April a team of physicists at Fermi National Laboratory in Batavia, Ill., announced anomalous behavior in the magnetic wiggle of the muon. The signal suggests that there may be other forces at work affecting the particle’s behavior besides those predicted by the Standard Model of physics (see “Long-Awaited Muon Measurement Boosts Evidence for New Physics”). But as physicist Sabine Hossenfelder outlines in her fascinating analysis of this finding, whether or not this discovery upends the classical rules depends on mind-bending statistics and higher-level calculations aided by computers to determine whether we have seen something significant or are merely observing a number- crunching fluke (see “Is the Standard Model of Physics Now Broken?”).

Elsewhere in the subatomic world, researchers are hoping that quantum hard drives might one day collect and store photon data from optical telescopes spread across the planet (see “Quantum Astronomy Could Create Telescopes Hundreds of Kilometers Wide”). Though invisible to human eyes, subatomic particles have been called the building blocks of matter and may be the key to understanding the nature of our universe.

Andrea Gawrylewski is chief newsletter editor at Scientific American. She writes the daily Today in Science newsletter and oversees all other newsletters at the magazine. In addition, she manages all special collector's editions and in the past was the editor for Scientific American Mind, Scientific American Space & Physics and Scientific American Health & Medicine. Gawrylewski got her start in journalism at the Scientist magazine, where she was a features writer and editor for "hot" research papers in the life sciences. She spent more than six years in educational publishing, editing books for higher education in biology, environmental science and nutrition. She holds a master's degree in earth science and a master's degree in journalism, both from Columbia University, home of the Pulitzer Prize.

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SA Space & Physics Vol 4 Issue 3This article was originally published with the title “The Subatomic Keys to the Universe” in SA Space & Physics Vol. 4 No. 3 (), p. 0