Vector Meson Dominance

I’m only now learning about ‘vector meson dominance’—a big idea put forth by Sakurai and others around 1960. Here’s a family of 9 mesons called the ‘vector nonet’. Each one is made of an up, down or strange quark and an antiup, antidown or antistrange antiquark. That’s 3 × 3 = 9 choices. In this […]