Why are mesons only made of a quark-antiquark pair?
10413
Why do quarks tend to bond in groups of three?
25257
How to see if certain representation of $SU(2)$ is symmetric/antisymmetric/mixed?
104105
Are antiparticles just particle-shaped holes?
5535
About free quarks and confinement
22040
Why is there no theta-angle (topological term) for the weak interactions?
5810
What does it mean that particles are the quanta of fields?
102648
Change of flavour, Weak interaction
149592
Why do we say that irreducible representation of Poincare group represents the one-particle state?
45611
Why are all force particles bosons?
92358
Can bosons that are composed of several fermions occupy the same state?
20208
Why are anticommutators needed in quantization of Dirac fields?
126865
How can we know if a pair of particles are entangled?
89295
The interpretation of mass in quantum field theories
129816
Experimental observation of matter/antimatter in the universe
130259
Is the S-Matrix the only quantum field observable?
76255
Does a gluon have mass or not?
12388
Which types of particles are affected by the wave-particle duality?