Angular momentum during bremsstrahlung

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SUMMARY

In bremsstrahlung, two free electrons emit photons as they approach each other, resulting in the transfer of angular momentum. The emitted photons carry away angular momentum, which is conserved as the electrons lose an equivalent amount. The interaction with another charged particle, typically a nucleus, is crucial for this process, as it facilitates the emission of virtual photons. Notably, there is no Feynman diagram representing the scenario of an electron entering and a photon plus another electron exiting.

PREREQUISITES
  • Understanding of bremsstrahlung and its mechanisms
  • Familiarity with angular momentum conservation principles
  • Knowledge of photon emission and interaction processes
  • Basic grasp of Feynman diagrams and their applications
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  • Research the principles of angular momentum conservation in quantum mechanics
  • Study the bremsstrahlung process in detail, focusing on electron interactions
  • Explore the role of virtual photons in particle interactions
  • Learn about Feynman diagrams and their significance in quantum field theory
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Physicists, students of quantum mechanics, and anyone interested in the interactions of charged particles and photon emissions.

intervoxel
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Two free electrons approach each other, so they start to emit photons due to bremsstrahlung. Where does the angular momentum carried away by the emitted photons come from?
 
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:eynman:

I'm sure experts will jump on the phrasing 'start to emit photons' . Never mind. I suppose you googled ? I got lots of useful links.
Angular momentum is conserved; the electron loses what the photon carries off (ahem...). The presence of another charged particle (normally a nucleus) that interacts through a virtual photon is essential ! There is no Feynman diagram for electron in, photon + electron out !
 
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