3 ms·
The article notes that we have enough trouble directly detecting neutrinos in the mega-eV range, while the ones we need to measure for this purpose are in the m
by ctdonath 11y ago
The article notes that we have enough trouble directly detecting neutrinos in the mega-eV range, while the ones we need to measure for this purpose are in the micro-eV range. Yes it would be more informative, but so hard that we assume direct measurement is practically impossible ... but the article describes an alternative method (phase-shift) of deducing temperature from other consequences of that value.
- ISL 11y agoThere are people who are trying hard to find ways to see the CNB. The primary approach is to try to do something called 'coherent neutrino scattering'. If you can find the right material/metamaterial, you're off to the races. The number of CNB neutrinos passing through your body right now is considerable.
- jessriedel 11y agoYes I understand all that, but direct detection is definitely not impossible. The PTOLEMY experiment at Princeton is attempting to do just that, although it's very very hard. Might still be decades away. http://arxiv.org/abs/1307.4738 http://arxiv.org/abs/1307.4738