What mechanism gives mass to gluon balls?
99916
Why Do Glueballs Have Mass, When Individual Gluons Are Massless?
89295
The interpretation of mass in quantum field theories
22168
What keeps mass from turning into energy?
141320
Particle energy in general relativity?
136790
hard self collision: make particles occupy space
84440
Is (rest) mass quantized?
22090
Does the (relativistic) mass change? Why?
82852
How is Angular Momentum Conserved when Mass is Released?
7687
How does the Higgs mechanism work?
116949
What gives mass to black hole?
37126
Where does in GUT symmetry breaking $U(1)$ come from?
70090
What's the deepest reason why QCD bound states have integer charge?
59991
Could someone explain the muon $g-2$ experiment problem?
59594
Binding energy and mass
37216
How can one motivate the relativistic momentum?
138818
From which dimensionful constants does proton mass arise?
89004
Where does the partial derivative come from in Sakurai's derivation of the momentum operator?