Physics theory holds that there are three pairs of quarks, and the top quark was the last to be isolated.
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In particle physics, a "'stop squark "'is the superpartner of the top quark as predicted by supersymmetry ( SUSY ).
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:Our article, top quark, says : " The Standard Model predicts its lifetime to be roughly 5?0 " 25 s.
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A future electron positron collider would be able to provide the precise measurements of the top quark needed for such calculations.
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But in the following 17 years, Fermilab increased its capabilities and energy, and at last the top quark was dimly sighted.
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While the top quark is the heaviest known quark, the stop squark is actually often the lightest squark in many supersymmetry models.
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Now, the scientists are confident enough in their data that Thursday they were able to declare the top quark " has been discovered ."
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The 440 physicists whose machine produced evidence of the long-sought " top quark " earlier this year agonized for months before publishing their finding.
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Each failure to find the top quark was justification for a newer, higher-energy run, and for more and more money to stoke their machines.
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If this occurs, the primary studies of Higgs bosons and top quarks would in fact be looking at those produced by the black holes.
