Jack Steinberger (1921–2020)

When particle physicist <a href="/default/tags/jack-steinberger" hreflang="en">Jack Steinberger</a> began his career in 1945, scientists knew about only a handful of subatomic particles. Today, dozens are evident, and their basic building blocks are codified in the standard model of particle physics. Steinberger, who has died aged 99, contributed throughout — from discovering particles to grouping them. He shared the Nobel Prize in Physics in 1988 (with Melvin Schwartz and Leon Lederman) for a 1962 experiment that revealed the existence of two distinct types of an enigmatic particle: the neutrino.