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  3. The physics of elementary particles is notorious for the fancifulne

The physics of elementary particles is notorious for the fancifulne

游客2025-02-21  64
问题        The physics of elementary particles is notorious for
      the fancifulness of its terminology, abounding as
      it does in names such as "quark," "flavor,"
Line "strangeness" and "charm." One term, however,
(5) even to the nonscientist seems most apt: "gluon."
     Physicists conjecture that the gluon is the "glue"
     connecting quarks into hadrons or strongly inter-
     acting particles (protons, neutrons, pions, etc.).
     Initially, physicists envisaged the gluon’s adhe-
(10) sive strength to be so powerful that a quark could
     not be extracted from a hadron no matter how
     great the force brought to bear on it. Furthermore,
     the gluon itself also seemed to be permanently
     bound: just as no force seemed strong enough to
(15) pry apart the quarks, none appeared strong
     enough to squeeze out a single drop of the glue
     that bound them. Today, however, some physi-
     cists hypothesize the existence of pure glue: glu-
     ons without quarks, or gluonium, as they call it. [br] The author refers to charms and quarks (lines 3-4) primarily in order to
选项 A、demonstrate the similarity between these particles and the gluon
B、make a distinction between apposite and inapposite terminology
C、offer an objection to suggestions of similar frivolous names
D、provide illustrations of idiosyncratic nomenclature in contemporary physics
E、cite preliminary experimental evidence sup-porting the existence of gluons
答案 D
解析
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