Quarks but if a proton is uud and a neutron is udd

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    Neutron Proton Quarks
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Discussion Overview

The discussion revolves around the mass difference between a neutron and a proton, specifically in the context of their quark compositions (uud for protons and udd for neutrons). Participants explore the implications of this relationship and the factors influencing mass differences.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions whether the mass difference between a neutron and a proton can be equated to the mass of a down quark.
  • Another participant suggests that the relationship is more accurately described as u-d.
  • A later reply acknowledges the quark composition but notes that other interactions contribute to the mass difference, indicating the complexity of the situation.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between quark masses and the neutron-proton mass difference, indicating that the discussion remains unresolved.

Contextual Notes

There are limitations regarding assumptions about quark mass contributions and the influence of other interactions on mass differences, which are not fully explored in the discussion.

harp AP 2010
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I don't know much about quarks but if a proton is uud and a neutron is udd, is the (mass of a neutron)-(mass of proton)=mass of a down quark?
 
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More like u-d.
 


Right, sorry...
 


neutron-proton would be d-u, but other interactions also contribute to the mass difference. It can get complicated.
 

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