Hi, I'm currently doing a course in particle physics at masters level and I have this problem:(adsbygoogle = window.adsbygoogle || []).push({});

I know that having an red:anti-red gluon isn't possible as this produces an non-zero trace for its representation, but if I have a red quark that emits a gluon and afterwards is still a red quark, what would be the possible gluon combinations/colors? is it just the two linear combinations: (R:aR - B:aB)/sqrt(2) and (R:aR + B:aB - 2G:aG)/sqrt(6) ???

Thanks in advance

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# Red quark going to a red quark via an gluon emission

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