Entry from US English dictionary
A quark with a mass of about 340,000 times that of an electron and a charge of + 2/3.
- 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.
For editors and proofreaders
Syllabification: top quark
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