(d) Particles X, Y and Z, each of which includes one or more charm quarks or charm antiquarks, have the following quantum numbers: Particle X Y Z Baryon +1 0 -1 Strangeness -1 0 0 Charm +1 -1 -1 Isospin ½ ½ 1 Determine the quark content and charge of each of the particles. mĮ (or 13) +½ -½ +1
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