Noun
top quark (plural top quarks)
(physics) A quark having a fractional electric charge of Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "http://localhost:6011/en.wiktionary.org/v1/":): {\displaystyle +\frac{2}{3}}
and a mass of about 178,000 MeV.Symbol:
t
{\displaystyle t}
Synonym: (dated) truth quark
The top quark was discovered in 1995 and since then the Higgs has become an because the standard model was incomplete with out it. Fabiola Gianotti