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Three progressively heavier copies of each type of matter particle exist, and no one knows why. A new paper by Steven Weinberg takes a stab at explaining the pattern.
Scientists on the ATLAS experiment explored the polarization of W bosons to test the Higgs mechanism and gain a deeper understanding of the first moments after the Big Bang.
The W boson mass is one of the fundamental ingredients that scientists use to calculate particle physics properties, such as the most likely mass of the soughtafter Higgs particle.
Just after 2:30 p.m. on Sept. 30, Fermilab accelerator pioneer Helen Edwards prepared to stop the circulation of subatomic particles in the Tevatron collider for the last time. She was a fitting choice; Edwards and her husband, Don, had led the Tevatron start-up nearly three decades earlier.
Have you ever sat in an open field at night, looked up at the vast number of stars and thought, “I bet an artificial brain would come in handy for making sense of all this”? You might if you were planning the best way for NASA to map the sky.
Maria Goeppert Mayer left an indelible stamp on the history of physics. Now the US Postal Service has honored the nuclear physicist with a stamp of her own.