🧪 Experiment

Discovery of the antineutron

Descubrimiento del antineutrón

Date
1956 · confidence high
Place
Berkeley, United States
Credited to
Bruce Cork, Glen Lambertson, Oreste Piccioni and William Wenzel
Field
Cosmos & Earth

What was discovered

In proton-antiproton collisions produced at the Bevatron accelerator, Cork's team detects the antineutron, the antiparticle of the neutron, one year after the discovery of the antiproton.

The discovery took place one year after the antiproton (1955), at the same accelerator at Lawrence Berkeley National Laboratory.

What it led to

  • Experimental confirmation of baryonic antimatter
  • High-energy particle accelerator physics
  • Basis for the search for heavier antinuclei

Links

Sources✓ verified 2026-09-25