- #1

- 38

- 0

Then when the electron and positron annihilate, the two photons produces will each have energy equal to the rest mass of a positron/electron.

The new photons will have half the energy of the original photon each.

Is this correct?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter rss14
- Start date

- #1

- 38

- 0

Then when the electron and positron annihilate, the two photons produces will each have energy equal to the rest mass of a positron/electron.

The new photons will have half the energy of the original photon each.

Is this correct?

- #2

mathman

Science Advisor

- 7,942

- 496

Not quite true. The incoming photon will in general have more energy than that required to create the pair. The extra energy ends up as kinetic energy of the pair.The new photons will have half the energy of the original photon each.

- #3

- 38

- 0

- #4

mathman

Science Advisor

- 7,942

- 496

Small correction, the extra energy of the photon in pair production goes into kinetic energy of the nucleus.

Share: