Cherenkov radiation by neutrinos

Details Cherenkov radiation by neutrinos Cherenkov radiation by neutrinos

1999-01-26

arxiv.org/abs/hep-ph/9901424v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at 4th SFB-375 Ringberg Workshop on Neutrino Astrophysics Ringberg Castle, Tegernsee, Germany, 20-24 Oct 1997

Scientific paper

We discuss the Cherenkov process $\nu\to\nu\gamma$ in the presence of a homogeneous magnetic field. The neutrinos are taken to be massless with only standard-model couplings. The magnetic field fulfills the dual purpose of inducing an effective neutrino-photon vertex and of modifying the photon dispersion relation such that the Cherenkov condition $\omega<|{\bf k}|$ is fulfilled. For a field strength $B_{\rm crit}=m_e^2/e=4.41\times10^{13} Gauss$ and for $E=2m_e$ the Cherenkov rate is about $6\times10^{-11}s^{-1}$.

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