Yeah. I tried the link earlier, but the page wouldn’t load. That’s why all the questions.
I tried it again a few minutes ago and got in.
Wow. Very interesting stuff.
the cool thing about nutrinos is that they do have a mass, and they’re so many of them that they may account for a decent percentage of the missing matter (10-20%) needed to halt the universal expansion (if indeed the expansion does reverse at some point in which it may not).
It was my understanding that they had set an upper limit for the rest mass of the neutrino (i.e. it can’t have more than x mass and still agree with experiments) rather than estimating its mass range.
He’s the sort to stand on a hilltop in a thunderstorm wearing wet copper armor, shouting ‘All Gods are Bastards!’
In 1987, we detected a great big neutrino event almost exactly at the same time as the first light from Supernova 1987-A started to reach us.
This strongly implies that neutrinos travel either at the speed of light, or so close to it that we can’t detect the difference. If that is the case, then neutrinos cannot have rest-mass without violating special relativity.