°×С½ãÂÛ̳ cosmologists weigh into the debate about neutrino mass
11 August 2014
Ìý
The standard model of particle physics needs to be extended: it predicts that neutrinos have zero mass, but this does not fit with experimental data. Recent work has suggested an unexpectedly high mass for the neutrino, but °×С½ãÂÛ̳ cosmologists say this is wrong. They argue that a low mass is more consistent with the observed properties of the universe. The Dark Energy Survey (which °×С½ãÂÛ̳ is also involved in) will provide data that could resolve this debate in the next few years.
Read the full debate on the
The first detection of a neutrino in a bubble chamber, in 1970. Photo credit: Argonne National Laboratory (public domain)