The first antiparticle was discovered by American physicist Carl Anderson in 1932.
第一个反粒子是美国物理学家卡尔·安德森在1932年发现的。
202325
Four years later, in 1932, physicist Carl Anderson discovered the positron, a particle with the same mass as an electron but with a positive charge, confirming Dirac's prediction and marking the discovery of antimatter.