Eli5: Can two photon particles hit each other? What happens if they did?

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Eli5: Can two photon particles hit each other? What happens if they did?

In: Physics

6 Answers

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Most photons can’t interact as their energies are too low. This includes visible light, UV, x-ray, infrared, and radio.

If they have enough energy to “pay” for the resulting “mass” they can create matter+antimatter. The lowest energy option for that is electron+positron, which already needs strong gamma radiation photons. With even more energy it can create even heavier stuff.

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