Some questions about chromodynamics

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Hadrons must be colorless to satisfy the requirements of quantum chromodynamics (QCD), as any net color charge would disqualify them as hadrons. The QCD potential, expressed as V(QCD) = -a/r + br, suggests a strong interaction at small distances, yet asymptotic freedom indicates that quark interactions diminish at these distances. This apparent contradiction highlights the complex nature of QCD dynamics. Gluons facilitate the formation of hadron jets by mediating the strong force between quarks, allowing for the creation of these particle streams. Understanding these concepts is crucial for grasping the fundamental interactions in particle physics.
Superlativity
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hello everyone, i have some points that I am not really clear about and really need your help with


- why do hadrons have to be colorless?

- this is about QCD potential: we have V(QCD) in the form of - a/r + br, so we expecting a strong interaction between hadron at small distance. But according to asymptotic freedom, the interaction between quarks becomes negligible at small distance. How can you account for this?

- how does exactly gluon create hadron jet?


Appreciate all the replies.

Cheers
 
Last edited:
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Superlativity said:
why do hadrons have to be colorless?
Because that is one of the properties of a hadron. If it had a net colour, it would not be a hadron.
 

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