Abstract
A detection scheme for the cosmic neutrino background, based on bremsstrahlung in its coherent scattering off free cold electrons, is explored. Both magnetic moment and weak interaction couplings are considered for arbitrary Dirac neutrino masses. Photon production rates may reach values of ∼ 10 8( μ ν /10 −10 μ B ) 2/day for neutrinos with a magnetic moment μ ν , and values of ∼ 10 −3/day for weakly-interacting Dirac neutrinos with a mass of 25 eV; per 1 kton of a solid with mostly free electrons.
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