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Physicist here: yes, photon collisions can lead to annihilation ... and production of a particle--anti-particle pair.
by aroberge 11y ago
Physicist here: yes, photon collisions can lead to annihilation ... and production of a particle--anti-particle pair.
- colejohnson66 11y agoThen why don't things happen when you point two lasers at each other?
- auntienomen 11y agoScattering happens in this situation, but for ordinary lasers, it's an undetectably tiny effect. You need particle accelerator scale energies and very high densities to see anything.
- Florin_Andrei 11y agoBecause photon density in your little laser is far below the levels required to make this phenomenon observable. It can be done, but it requires very high power laser beams, focused very tightly, and even then the events are pretty rare.