Colin Reid
IN 1977, physicist Frank Wilczek took a walk that would change the course of particle physics forever. “On that walk, I had the germs of two really good ideas,” he recalls. The first was how a theoretical particle, later dubbed the Higgs boson, might interact with other particles. This would be how the Higgs was found decades later. The second idea, however, has taken a little longer to catch on.
Wilczek had imagined a way that very light – essentially massless – particles could be…
