Definition of W particle in English:

W particle

Syllabification: W par·ti·cle

noun

Physics
  • A heavy charged elementary particle considered to transmit the weak interaction between other elementary particles.
    More example sentences
    • For example, the neutrino, a product of radioactive decay, senses protons by exchanging W particles with them, which may change a proton back into a neutron.
    • They knew they were logging lots of data with low backgrounds, just what they needed to find W particles.
    • The detection of the W particle is an example of extraordinary scientific sleuthing, comparable to finding a missing person in a crowd of a billion people.

Origin

W, the initial letter of weak.

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