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lepton
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lepton

Any of a class of elementary particles that are not affected by the strong nuclear force. The leptons comprise the electron, muon, and tau, and their neutrinos (the electron neutrino, muon neutrino, and tau neutrino), as well as their six antiparticles.

In July 2000, researchers at Fermilab, in the USA, amassed the first direct evidence for the existence of last neutrino remaining to be discovered, the tau lepton.



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? Mentioned in ? References in periodicals archive
 
v] are the total energies of emitted leptons, and A and B are the usual decay asymmetry parameters arising from parity violation for the charged lepton and the neutrino, respectively.
Search for time reversal violating effects: R-correlation measurement ... by Zejma, J. / Journal of Research of the National Institute of Standards and Technology
For instance, anthropologists have found evidence of hominids as far back as 6 million years ago; we now know that matter is made up of quarks and leptons and is governed by just a few fundamental forces; all biological information is encoded in the helical strands of our DNA.
UCLA and The Impact Of Science by PECCEI, ROBERTO / Los Angeles Business Journal
The standard model identifies a dozen fundamental fermions, or matter particles, which come in two families known as quarks and leptons.
Jiggling the cosmic ooze; a new blueprint for all the universe's mass ... by Weiss, Peter Ulrich / Science News
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