Tuesday, 7 March 2017

particle physics - Where does the majority of the mass of the usual matter come from?



I apologize in advance to experts for the naivety of the question. It should be a duplicate but I didn't find any satifying question or answer about that.



The proton is composed by two up quarks and one down quark.


mass(proton) 940 MeV/c2
mass(up) 2.3 MeV/c2
mass(down) 4.8 MeV/c2


It follows that: 2mass(up) + mass(down) 9.41100 mass(proton).


Question: Where does 99% of the remaining mass of the proton come from?




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