Word: tollestrup
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Dates: during 1990-1999
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Theorists have already deduced that the top quark is heavier than any known particle. "A single top quark," exclaims Fermilab physicist Alvin Tollestrup, "probably weighs at least as much as a whole silver atom does." (With an atomic weight of 108, a silver atom is made up of hundreds of up and down quarks.) Exactly how much top quarks weigh is a question scientists are anxious to answer, but first they must find some to measure -- a task considerably complicated by the fact that in nature these massive but ethereal entities made only a cameo appearance, just after...
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