In quantum mechanics, wavefunction is a mathematical representation of a particle. Taking the square modulus of the wavefunction produces a probabilistic prediction about the location of a particle, but does not indicate a single definite position.

Weak Boson

The weak bosons are the mediators of the weak force. They come in three varieties: W+, W-, and Z0.

Weak Force

The weak force (or weak interaction) is a fundamental interaction between all particles in the standard model. The weak interaction dictates the way fundamental particles can decay into other fundamental particles (for example, the phenomenon of radioactive beta decay). The weak force is mediated by the weak bosons.

Weakly Interacting Massive Particle (WIMP)

Weakly Interacting Massive Particles (or WIMPs for short) are theorized particles that may explain the strange phenomenon of dark matter. If they exist, then the only fundamental forces they could interact with would be the gravitational force and the weak force.