Is a proton really just made up of 3 quarks?

Subject: Is a proton really just made up of 3 quarks?

Date: Wed Dec 6 03:26:37 2006
Posted by sarah
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Area of science: Physics
ID: 1165400797.Ph

Message:


If a proton has a mass of 938MeV and is composed of 2 up quarks (1.5-4MeV) and 
1 down quark (4-8MeV) where does the other 900+MeV come from?

Re: Is a proton really just made up of 3 quarks?

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