weak nuclear force

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Definition of weak nuclear force in English English dictionary: One of the four fundamental forces that is associated with nuclear decay. Its gauge bosons are the W+, W- and Z0 particles
weak force: The weak nuclear force
weak nuclear forces: plural form of weak nuclear force
weak force: or weak nuclear force Fundamental interaction that underlies some forms of radioactivity and certain interactions between subatomic particles. It acts on all elementary particles that have a spin of 1 2 . The particles interact weakly by exchanging particles that have integer spins. These particles have masses about 100 times that of a proton, and it is this relative massiveness that makes the weak force appear weak at low energies. For example, in radioactive decay, the weak force has a strength about 1/100,000 that of the electromagnetic force. However, it is now known that the weak force has intrinsically the same strength as the electromagnetic force, and the two are believed to be only different manifestations of a single electroweak force (see electroweak theory)