## Wednesday, May 21, 2014

### Sunyaev-Zel'dovich effects with neutrinos

would there be analogies of the Sunyaev-Zel'dovich effects due to electron-scattering with the cosmic neutrino background? can you point out similarities and differences and estimate the magnitude of the effects?

#### 1 comment:

1. the cross section for neutrino-electron scattering at eV-energies is about $10^{-55}$ square meters, which is a factor of $10^{-26}$ less than the Thomson cross section of electron-photon scattering. apart from that both effects are very analogous.