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kuartus4
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When two high energy photons collide with each other, what determines whether a pair production results or whether a photon-photon scattering results? I hope my question makes sense.
That's what the man said.So a collision that can result in pair production can just as well result in scaterring, with no reason why one occurs and not the other?
Bill_K said:That's what the man said.
kuartus4 said:So a collision that can result in pair production can just as well result in scaterring, with no reason why one occurs and not the other?
you can just use the mandelstam variable S(there are three) which represents total energy to decide which one has more possibility over other.for scattering in which S<< 4ml2,the cross section σ=α4S3/ml8,for box graph.and forkuartus4 said:Just checking. I thought there was more to it than that.
A photon-photon interaction is a physical process in which two photons, or particles of light, interact with each other. This can occur through various mechanisms, such as scattering, absorption, or annihilation.
Photon-photon interactions play a crucial role in many fundamental processes in physics, such as the creation of matter and antimatter, the behavior of electromagnetic fields, and the formation of the early universe.
Yes, photons can interact with each other even in the absence of any other particles. This is known as a vacuum polarization effect, where the presence of virtual particles allows for the interaction of photons.
Photon-photon interactions can be observed indirectly through their effects on other particles, such as the creation of electron-positron pairs. They can also be observed directly through high-energy experiments, such as colliding photon beams.
Photon-photon interactions have potential applications in fields such as quantum computing, high-energy physics, and astronomy. They also play a role in the development of new technologies, such as photonics and laser technology.