I'm trying to understand the notation (3, 1, 2/3) for the up quark and (3, 2, 1/6) for the left-handed up and down quarks.... Is the first number related to SU(3), the second SU(2) and the third I believe is the hyper charge... Not sure what the significance is of the first two numbers...(adsbygoogle = window.adsbygoogle || []).push({});

I think the 1 in (3, 1, 2/3) means the up quark doesn't interact with the weak force. But what would the 3 mean? A triplet in SU(3)? If so, how would I find it?

Possible equations:

Q = I3 + Y

Q = I3 - Y

Q = T3 + Y

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# How to determine quantum numbers for beta functions?

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