Why does pair production of an electron and positron only needs 1 photon whereas their annihilation releases 2 photons?
135728
Why during annihilation of an electron and positron 2 gamma rays are produced instead of 1?
13605
EM wave function & photon wavefunction
74065
Proof of de Broglie wavelength for electron
70682
Mechanism of pair production and annihilation of matter
85582
Why aren't all photons virtual particles even in the "vacuum" of empty space?
88111
Why don’t photons interact with the Higgs field?
82470
Why is there an emission of gamma rays?
118153
Neutrino annihilation and bosons
90766
Why are alpha particles such a prominent form of radiation and not other types of nucleon arrangement?
30745
Why can't photons have a mass?
32307
How can we interpret polarization and frequency when we are dealing with one single photon?
72287
How does gamma-gamma pair production really work?
134172
Photons acting as carriers of both attractive and repulsive forces
58463
How are photons "consumed"?
20412
Frequency of a photon
90836
Why do quantum effects dominates when the thermal de Broglie wavelength is on the order of or larger than the interparticle distance?
154151
How do single photons travel from here to there