From National Geographic (Spain) April 21, 2023: A little over a year ago, the high-precision measurement of the W boson was announced with an accuracy of 0.01%, twice as great as the best previous measurement. In finding the mass of the W boson to be significantly higher than predicted by theory, it deviates markedly from the Standard Model predictions.

For decades, scientists have tried to find a way to measure the mass of the lightest matter particle known to exist. Three new approaches now have a chance to succeed.

From New Scientist, Dec. 16, 2022: This year was another busy year in science and technology and New Scientist news editors’ have chosen some of the biggest scientific developments, discoveries and events in 2022. Included in this year’s selections is the April 2022 announcement of the mass of the W boson that used Fermilab’s Tevatron.

What is energy?

Energy is one of those confusing physics terms that has both familiar and technical meanings. In this video, Don Lincoln sheds some light on what physicists mean when they say the word, as well as some truths about energy that would shock his high school physics teacher.

From Pour la Science, April 11, 2022: A new measurement of the mass of the W boson is higher than predicted by the Standard Model. Is this a sign of new physics? For experts in the field, this conclusion would be premature. But this result is nevertheless very interesting as one of the most difficult measurements in physics.

From Forbes, Sept. 8, 2021: The Standard Model provides the framework of all the known and discovered fundamental particles, but has no way of providing expected values for what masses each particle should possess. Fermilab’s Main Ring, in operation for 25 years by physicists who used the accelerator for experiments, helped to create our current picture of the ultimate structure of matter, the Standard Model of particle interactions.