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W and Z particles
(redirected from W and Z bosons)

    Also found in: Wikipedia, Hutchinson 0.04 sec.
W and Z particles, elementary particles elementary particles, the most basic physical constituents of the universe.

Basic Constituents of Matter



Molecules are built up from the atom , which is the basic unit of any chemical element .
..... Click the link for more information.  that mediate, or carry, the fundamental force associated with weak interactions weak interactions, actions between elementary particles mediated, or carried, by W and Z particles and that are responsible for nuclear decay. Weak interactions are one of four fundamental interactions in nature, the others being gravitation , electromagnetism, and
..... Click the link for more information. . The discovery of the W and Z particles at CERN CERN or European Organization for Nuclear Research, nuclear and particle physics research center straddling the French-Swiss border W of Geneva, Switzerland.
..... Click the link for more information.  near Geneva, Switzerland, in the early 1980s was an important confirmation of electroweak theory, which unifies the electromagnetic and weak forces. The W and Z particles are quite massive for elementary particles; they are roughly 100 times as massive as the proton.
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One expects the strong repulsion in the NN interaction to keep the nucleons too far apart for a simple direct exchange of W and Z bosons between quarks in different nucleons to represent an accurate dynamical mechanism.
Neutron measurements and the weak nucleon-nucleon interaction by Snow, W.M. / Journal of Research of the National Institute of Standards and Technology
Instead, they envision that as the universe evolved according to the steady laws of physics, the inherent possibility for W and Z bosons to become massive was realized.
Constant Changes by WEISS, PETER / Science News
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