- +/- 1e electrical charge
- The anti-particle of a W boson is another W boson.
- Mass = 80.385 GeV/c2
- Quantum spin = 1
The W boson was experimentally observed in 1983, earning the 1984 Nobel Prize in Physics for Simon van der Meer and Carlo Rubbia "for their decisive contributions to the large project, which led to the discovery of the field particles W and Z, communicators of weak interaction".