# High energy e- e- scattering, ratio inelastic/elastic cross-sections?

1. ### Spinnor

If we were to scatter high energy (say E>>m_e) electrons off each other is there a hand wavy argument to come up with a rough estimate for the ratio of inelastic to elastic cross-sections?

Would the dominate inelastic collision between two high energy electrons result in a single photon emitted?

Thanks for any help!

2. ### mathman

6,517
"electron-electron interaction"