• Excerpts from: As of 1999, it is believed neutrinos have a minuscule, but non-zero mass. ... Because neutrinos are very weakly interacting, neutrino detectors must be very large in order to detect a significant number of neutrinos. Neutrino detectors are often built underground in order to isolate the detector from cosmic rays and other background radiation. ...various detection methods have been used. Super Kamiokande is a large volume of water surrounded by phototubes that watch for the Cherenkov radiation emitted when an incoming neutrino creates an electron or muon in the water. The Sudbury Neutrino Observatory is similar, but uses heavy water as the detecting medium, which uses the same effects, but also allows the additional reaction any-flavor neutrino photo-dissociation of deuterium, resulting in a free neutron which is then detected from gamma radiation after chlorine-capture. Other detectors have consisted of large volumes of chlorine or gallium which are periodically checked for excesses of argon or germanium, respectively, which are created by electron-neutrinos interacting with the original substance. MINOS uses a solid plastic scintillator watched by phototubes, Borexino uses a liquid pseudocumene scintillator also watched by phototubes while the proposed NOνA detector will use liquid scintillator watched by Avalanche photodiodes.
  • it must have mass how else would you detect it?
  • it either has mass or not it can not be both it can not mean minuscule and non zero what ever that means if it is minuscule lt still has some mass so it is that it has mass
  • You can detect it via its interactions in water.. I fail to remember the specific details. It's mass is in the order of 10^-6 eV. An exact figure has been impossible to put down, so far

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