query: Why does the mass of a proton not equal the mass of its corresponding quarks?
positive_passages.docid: 110266
positive_passages.text: Quarks in a hadron: where does the mass come from?
negative_passages.docid: 150985
negative_passages.text: Why can't the Klein-Gordon equation explain the hydrogen atom but the Dirac equation does?
negative_passages.docid: 12422
negative_passages.text: Derivation of $E=pc$ for a massless particle?
negative_passages.docid: 126730
negative_passages.text: What is the mass of Photon or Light Particle?
negative_passages.docid: 29857
negative_passages.text: Why is this not a violation of parity invarance for EM
negative_passages.docid: 60172
negative_passages.text: How to explain $E=mc^2$ mass defect in fission/fusion?
negative_passages.docid: 78286
negative_passages.text: Why do neutrino oscillations imply nonzero neutrino masses?
negative_passages.docid: 21581
negative_passages.text: Empirical bound on sum of electron and proton charge
negative_passages.docid: 70090
negative_passages.text: What's the deepest reason why QCD bound states have integer charge?
negative_passages.docid: 28350
negative_passages.text: $\lambda=\frac{2h}{p}$ instead of $\lambda=\frac{h}{p}$?
negative_passages.docid: 82747
negative_passages.text: How has quark electric charge been directly measured?
negative_passages.docid: 82362
negative_passages.text: Is there a fundamental reason why gravitational mass is the same as inertial mass?
negative_passages.docid: 158808
negative_passages.text: Do photons have relativistic mass?
negative_passages.docid: 45283
negative_passages.text: Why don't virtual particles violate conservation of mass/energy?
negative_passages.docid: 55085
negative_passages.text: How come a photon acts like it has mass in a superconducting field?
negative_passages.docid: 33978
negative_passages.text: Is the Higgs boson not responsible for most mass?
negative_passages.docid: 50132
negative_passages.text: Peaks in binding energy per nucleon