Why do quarks have the masses that they do? And why is the 'down' (negative) quark heavier than the 'up' (positively-charged) one?
87921
Why is the up quark is lighter than the down quark, while top is heavier than bottom?
146897
How does the Higgs field enable masses to attract each other?
34280
Why does the quarks binding energy add mass to nucleons instead of reducing it?
84892
What truly is mass, and is there a direct way to measure it?
15605
What is the difference between weight and mass?
30745
Why can't photons have a mass?
105784
Binding energy of a nucleus is positive?
116949
What gives mass to black hole?
53287
Why is charge of the electron negative?
78286
Why do neutrino oscillations imply nonzero neutrino masses?
95153
Is the electromagnetic mass real?
89724
Where does mass come from in pair production?
55815
Why doesn't mass of bob affect time period?
68831
Why mass terms are forbidden?
15029
How do we know that the nucleus isn't a quark-gluon plasma?
92532
Conservation of Mass during Electron - Positron Annihilation
111578
Why is gravitational potential energy negative, and what does that mean?