Definition of top quark in English:

top quark

Syllabification: top quark
(abbreviation: t)

noun

Physics
A quark with a mass of about 340,000 times that of an electron and a charge of + 2/3.
More example sentences
  • In our quest to understand the nature of the weak force, physicists have come up with some theories that link the weak force's extremely heavy W-boson with the extremely heavy top quark.
  • Thus, Nature hides its fundamental particles and we would like to understand better how the Strong Force achieves this. - Only the mass of the top quark is accurately known, because QCD effects are small for such a heavy particle.
  • They were part of an international team at Fermi National Accelerator Laboratory near Chicago that established the mass of the top quark, a discovery that ranked as Discover's No. 57 story.

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected