Why are there two photons in pair production Feynman diagram?
128965
Photon pair production at relativistic speeds?
146842
What is the Mediator in this Feynman Diagram $q\bar{q} \rightarrow gg$?
59176
Amplitude of an electromagnetic wave containing a single photon
80596
Ambiguities in the energy-momentum tensor
42778
Why is the contribution of a path in Feynmans path integral formalism $\sim e^{(i/\hbar)S[x(t)]}$?
89724
Where does mass come from in pair production?
141866
The lightest photon ever detected
154151
How do single photons travel from here to there
88637
Why can a particle decay into two photons but not one?
70682
Mechanism of pair production and annihilation of matter
134718
Why is there extra minus sign in Feynman's rules for every closed fermionic loop?
77578
How to get the accurate relativistic momentum form for photons?
45061
Physical interpretation of $Q^i = \partial _\nu T^{i \nu}$
149353
Feynman diagram for attractive forces
115200
Why does energy have to be emitted in quanta?
158118
Circle with a cross inside feynmp
30422
Are photon energies universally quantized?