Are Quarks Really Inside Protons?

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SUMMARY

The discussion centers on the nature of quarks and their relationship to protons, specifically addressing the misconception that quarks exist "inside" protons. Participants clarify that protons are composed of three quarks, which are fundamental constituents rather than separate entities residing within protons. The conversation highlights the limitations of English-language analogies in accurately describing quantum mechanics, particularly the "bag of quarks" analogy, which fails to convey the complexities of particle interactions and quantum numbers preservation.

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  • Understanding of quantum mechanics principles
  • Familiarity with particle physics terminology
  • Knowledge of proton and neutron composition
  • Basic grasp of quantum number conservation
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  • Explore quantum chromodynamics (QCD) and its implications
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I2004
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I keep hearing that quarks exist IN protons, one webpage even had it a proton is like a bag with quarks exist and annihilating in it. surely this is wrong. quarks don't exist in protons but rather 3 quarks made up protons or are protons. How does a proton keep the same quantum numbers if all its parts keep annihilating and creating as was stated in the other thread...
 
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I2004 said:
I keep hearing that quarks exist IN protons, one webpage even had it a proton is like a bag with quarks exist and annihilating in it. surely this is wrong. quarks don't exist in protons but rather 3 quarks made up protons or are protons. How does a proton keep the same quantum numbers if all its parts keep annihilating and creating as was stated in the other thread...

The problem here is that English-language descriptions of quantum-mechanical concepts are never completely accurate - at best they are analogies that sort of kinda tell you sort of kinda how some parts sort of kinda work. So I guess you could say that the language is wrong... but there's nothing we can do to the language to make it "right".

The "bag of quarks" analogy isn't half bad, but it leaves out the part about how all the annihilating and creating will somehow always arrange to preserve an isolated proton yet allow an isolated neutron to decay into a proton, far less the stuff that goes among multiple protons and neutrons bound together in a nucleus. And it's not like there's an actual bag there to contain the quarks.
 
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