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The basic constituent particles of which elementary particles are understood to be composed. Theoretical models built on the quark concept have been...



= Encyclopedia Article; = Research Update
From Encyclopedia article 'Quarks'
From Encyclopedia article 'Quarks'
Figure 1.Pseudoscalar meson nonet and the u, d, and s quarks and antiquarks as represented in isospin (I3)–hypercharge space. The solid lines sloping downward to the right are lines of constant electric charge.
From Encyclopedia article 'Quarks'