4 ms·
Also, the electron moving backwards in time would switch the charge and become its antiparticle: a positron. When an electron and a positron meet, they annihil
by geon 2y ago
Also, the electron moving backwards in time would switch the charge and become its antiparticle: a positron.
When an electron and a positron meet, they annihilate each other. That could be considered the same single particle switching direction in time.
- kevindamm 2y agoIndeed, that's the classic example given for a Feynman diagram and it shows the presence of a positron and its movement along -t. https://en.wikipedia.org/wiki/Feynman_diagram https://en.wikipedia.org/wiki/Feynman_diagram