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lepton
(redirected from Leptons)

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
lep·ton 1  (lptn)
n. pl. lep·ta (-t)
See Table at currency.

[Modern Greek, from Greek, small coin, from neuter of leptos, fine, small; see lepto-.]

lepton
Noun
Physics any of a group of elementary particles with weak interactions [Greek leptos thin]

lepton  (lptn)
Any of a family of elementary particles that interact through the weak force and do not participate in the strong force. Leptons include electrons, muons, tau particles, and their respective neutrinos, the electron neutrino, the muon neutrino, and the tau neutrino. The antiparticles of these six particles are also leptons. Compare hadron. See Note at elementary particle. See Table at subatomic particle.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.lepton - 100 lepta equal 1 drachma in Greece
Greek monetary unit - monetary unit in Greece
Greek drachma, drachma - formerly the basic unit of money in Greece
2.lepton - an elementary particle that participates in weak interactions; has a baryon number of 0
electron, negatron - an elementary particle with negative charge
elementary particle, fundamental particle - (physics) a particle that is less complex than an atom; regarded as constituents of all matter
fermion - any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle
mu-meson, muon, negative muon - an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino
neutrino - an elementary particle with zero charge and zero mass
tau-minus particle, tauon - a lepton of very great mass

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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.
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.
The standard model identifies a dozen fundamental fermions, or matter particles, which come in two families known as quarks and leptons.
 
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