quark


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quark

(qwark),
A fundamental particle believed to be the primary constituent of all mesons and baryons; quarks have a charge that is a fraction of 1 electron charge and interact through electromagnetic and nuclear forces. Six varieties are thought to exist with the unusual names of up, down, strange, charmed, bottom, and top.
[a word of indeterminate sense used by James Joyce in his novel Finnegans Wake]

quark

(kwōrk)
A fundamental particle believed to be the primary constituent of all mesons and baryons; quarks have a charge that is a fraction of one electron charge and interact through electromagnetic and nuclear forces. Six varieties are thought to exist, with the unusual names of up, down, strange, charmed, bottom, and top.
[a word of indeterminate sense used by James Joyce in his novel Finnegans Wake]
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References in periodicals archive ?
Finally, equation (8) allows calculating the decay width of the top quark to two bodies.
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Physicists in the College of Arts and Sciences at Syracuse University have confirmed that matter and antimatter decay differently for elementary particles containing charmed quarks.
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"In contrast to other baryons, in which the three quarks perform an elaborate dance around each other, a doubly heavy baryon is expected to act like a planetary system, where the two heavy quarks play the role of heavy stars orbiting one around the other, with the lighter quark orbiting around this binary system," Guy Wilkinson, former spokesman of the LHCb collaboration, said in (http://press.cern/press-releases/2017/07/lhcb-experiment-charmed-announce-observation-new-particle-two-heavy-quarks) the statement.
[[bar.S].sub.ij]([??]) = -[??][[delta].sub.ij]/[p.sup.2] - i[epsilon] (1 - [a.sup.2][k.sup.2]/1 + [a.sup.2][k.sup.2]) for quarks (1.2)
The CDF and DZero experiments discovered the top quark in 1995, and the Tevatron produced about 300,000 top quark events during its 25-year lifetime, completed in 2011.
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