Positron

The positron is the antiparticle of the electron. It has the same mass, but a positive charge.

History

In 1928, the English physicist Paul Adrien Maurice Dirac (1902 – 1984) predicted the positron as the antiparticle of the electron. The existence of the positron was first demonstrated in 1932 by the American physicist Carl David Anderson (1905 – 1991).

Related concepts

• activity
• atom
• decay constant
• electromagnetic radiation
• electron
• half-life
• molecule
• neutrino
• neutron
• nuclear decay
• proton
• X-radiation