Why did the big bang need to produce equal amounts of matter and antimatter?
41812
Baryogenesis only at the Planck scale, or none at all?
78916
Particles entangled after the big bang
76637
Why aren't particles constantly "measured" by the whole universe?
48467
How can a proton be converted to a neutron via positron emission and yet gain mass?
120746
How exactly does applying the Equipartition Theorem to radiation leads to UV catastrophe?
43998
Immediately after the Big Bang, was the universe in a state of extremely low or extremely high entropy?
60172
How to explain $E=mc^2$ mass defect in fission/fusion?
149215
Does a particle annihilate only with its antiparticle? If yes, why?
45611
Why are all force particles bosons?
119217
If particles are points, then aren't atoms empty space?
137653
Why doesn't the LHC accelerate electrons?
29686
Why would Antimatter behave differently via Gravity?
26748
Why does matter exist in 3 states (liquids, solid, gas)?
39654
When they say that the universe cooled after the big bang, where did the heat go?
105323
Why can't gravitons be created in traditional particle accelerators?
99680
The Dual Nature of Matter
46306
Where does de Broglie wavelength $\lambda=h/p$ for massive particles come from?