منابع مشابه
Cherenkov radiation by neutrinos
We discuss the Cherenkov process ν → νγ 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 ω < |k| is fulfilled. For a field strength Bcrit = m 2 e/e...
متن کاملCherenkov radiation by massless neutrinos
Due to their weak interactions, neutrinos can polarize a medium and acquire an induced charge. We consider the Cherenkov radiation emitted by neutrinos due to their effective electromagnetic interactions as they pass through a polarizable medium. The effect exists even for massless, chiral neutrinos, where no physics beyond the standard model needs to be assumed. The study of the electromagneti...
متن کاملČerenkov radiation by neutrinos in a supernova core
Neutrinos with a magnetic dipole moment propagating in a medium with a velocity larger than the phase velocity of light emit photons by the Čerenkov process. The Čerenkov radiation is a helicity flip process via which a lefthanded neutrino in a supernova core may change into a sterile right-handed one and free-stream out of the core. Assuming that the luminosity of such sterile right-handed neu...
متن کاملProbing Flavor Transition Mechanisms of Astrophysical Neutrinos
The determination of neutrino flavor transition mechanism by neutrino telescopes is presented. We first propose a model-independent parametrization for flavor transitions (such as standard three-flavor oscillations, neutrino decays or others) of astrophysical neutrinos propagating from their sources to the Earth. We demonstrate how one can constrain parameters of the above parametrization by pe...
متن کاملNeutrinos and Gravitational Radiation Initial question: What can neutrinos and gravitational waves
Throughout this course we’ve focused almost exclusively on photons. This is reasonable for a radiative processes class, especially because virtually all information we have about astronomy comes from detections of photons in one way or another. For this lecture, however, we’ll take steps in other directions. More and more experiments are aimed at detecting qualitatively different types of radia...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 2011
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2011.06.095