A heavy, uncharged elementary particle considered to transmit the weak interaction between other elementary particles.
- In addition, the theory requires that the W and Z particles, like the photon, should be massless.
- The Z particle decayed almost instantaneously, but left a distinctive trace in the collision data.
- Initial operation involved low beam intensities, and these runs failed to produce W or Z particles.
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Syllabification: Z par·ti·cle
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