Even adding them to the neutrino mass, the whole thing still came up too small.
This mechanism serves to explain why the neutrino masses are so small.
The other important aspect is the fact that neutrino masses appear to be so low.
The question of how neutrino masses arise has not been answered conclusively.
There are several powerful experimental reasons to expect new physics, including dark matter and neutrino mass.
But it does not find enough neutrino mass to "close" the universe - to halt or reverse its expansion.
Does neutrino mass come from a different source?
But, as one participant said, some team members were resisting any negative findings that might undermine the earlier reports of having found neutrino mass.
There is also the problem of the neutrino mass.
The extra energy could be showing up as increased neutrino mass.