Cosmic neutrinos and their detection
Hagmann, C.
Original · EN
The standard Big-Bang theory predicts a cosmic neutrino background with an average number density of 100/cm³ per flavor. The most promising way of its detection is measuring the feeble ``neutrino wind'' forces exerted on macroscopic targets. The expected acceleration is 10⁻²³ cm/s² for Dirac neutrinos with a local number density 10⁷/cm³. A novel torsion balance design is presented, which addresses the sensitivity-limiting factors of existing balances, such as seismic and thermal noise, and angular readout resolution and stability.
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