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The only combination of quark colors that produces a white baryon is RGB. Identify all the color combinations that can produce a white meson.
Question by OpenStax is licensed under CC BY 4.0.
There are three possible pairs:

  • red, antired
  • green, antigreen
  • blue, antiblue
Solution Video

OpenStax College Physics for AP® Courses Solution, Chapter 33, Problem 32 (Problems & Exercises) (0:42)

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This is College Physics Answers with Shaun Dychko. We need to list all the possible color combinations of quarks in mesons that produce white. So for a meson, it can only have two quarks and to produce white, you need to have a color and its anti-color corresponding so you could have red and anti-red, green and anti-green and blue and anti-blue and these are the only pairs that will produce white and of course, you could have mixtures of these pairs in different mesons and there we go!