Prospect for Relic Neutrino Searches
نویسندگان
چکیده
منابع مشابه
Prospect for relic neutrino searches
Neutrinos from the Big Bang are theoretically expected to be the most abundant particles in the Universe after the photons of the Cosmic Microwave Background (CMB). Unlike the relic photons, relic neutrinos have not so far been observed. The Cosmic Neutrino Background (CνB) is the oldest relic from the Big Bang, produced a few seconds after the Bang itself. Due to their impact in cosmology, rel...
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Probably the most promising way of detecting cosmic neutrinos is measuring the mechanical force exerted by elastic scattering of cosmic neutrinos from macroscopic targets. The expected acceleration is ∼ 10cm/s for Dirac neutrinos of mass ∼ 10 eV and local density ∼ 10/cm. A novel torsion balance design is presented, which addresses the sensitivity-limiting factors of existing balances, such as ...
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Resonant annihilation of extremely high-energy cosmic neutrinos on big-bang relic anti-neutrinos (and vice versa) into Z-bosons leads to sizable absorption dips in the neutrino flux to be observed at Earth. The high-energy edges of these dips are fixed, via the resonance energies, by the neutrino masses alone. Their depths are determined by the cosmic neutrino background density, by the cosmolo...
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ژورنال
عنوان ژورنال: Physica Scripta
سال: 2005
ISSN: 0031-8949,1402-4896
DOI: 10.1088/0031-8949/2005/t121/019