All Questions
5
questions
4
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Is the concept of bicolored gluons mathematically precise/meaningful? Please explain
Each flavour of quark carries a colour quantum number: red, green or blue. I know what it means mathematically. But elementary textbooks (e.g, particle physics by Griffiths) also say that gluons are ...
- 11.8k
4
votes
1
answer
313
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Understanding the proof of the "Photon-Decoupling Identity" for colour-ordered Yang-Mills amplitudes
Problem:
To prove the Photon-Decoupling Identity for colour-ordered Yang-Mills amplitudes:
$$0= A(1,2,3,...,n)+A(2,1,3,...,n)+...+A(2,3,...,1,n) \tag{1}$$
I know I must use $(2)$, which expresses ...
- 753
4
votes
1
answer
528
views
Is color charge quantized?
I was reading this stackexchange question, and found the answer to my question not totally answered. Clearly there is color and anti-color in analogy to electric charge, and color charge clearly ...
- 1,117
1
vote
1
answer
630
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"Color charge" of the adjoint fermion?
What kind of "color charge" does the adjoint fermion carry?
Let us consider the SU(N) gauge theory. The gauge field is in the adjoint representation (rep).
Well-Konwn: If the fermion is in SU(N) ...
- 4,336
1
vote
0
answers
61
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Could we draw field lines for colour charge?
Electromagnetic charge can be represented with field lines. These are pleasingly intuitive and can be used to visualise Gauss's Law and Maxwell's Laws. Later on Gauss and Maxwell get rolled into a ...
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