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VOLUME 81 (2005) | ISSUE 6 | PAGE 313
Photon-neutrino interactions
PACS: 13.15.+g
Abstract
We discuss the interaction of photons with neutrinos including two lepton loops. The parity violation in the γ ν → γ ν channel due to two lepton loops is substantially enhanced relative to the one lepton loop contribution. However there is no corresponding enhancement in the parity conserving amplitude in either the direct or the cross channel \gamma \gamma \to \nu\bar{\nu}.