单词 | valence quark |
释义 | > as lemmasvalence quark valence quark n. Particle Physics any quark whose presence as a constituent of a particle contributes to its spectroscopic properties. ΘΚΠ the world > matter > physics > atomic physics > particle physics > quark > [noun] > contributing to spectroscopic properties valence quark1971 1971 Kuti & Weisskopf in Physical Rev. D. 4 3420/1 We consider the nucleon to be a three-quark structure accompanied by a core of virtual quark-antiquark pairs... The valence quarks carry the internal quantum numbers of the nucleon, whereas the core has vacuum numbers. 1988 New Scientist 24 Dec. 28/1 The properties of the proton come simply from adding together the properties of the three valence quarks. < as lemmas |
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