Mesons have been predicted (in the first place, pi mesons by Yukawa in 1935), misidentified (mu mesons in cosmic rays) and discovered (pi mesons in cosmic rays), or at times discovered and not understood (the K mesons). Although the discovery of more mesons is expected, it seems unlikely that we are about to return to a traditional view of the fundamental particles as “simply” composed.
Graduate students in physics and astronomy struggle with mental health. Support from peers and advisers is critical; so is institutional change.
April 13, 2026 11:17 AM
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