A few days ago I wrote about how different measurements of the Hubble parameter gave results that didn't quite agree. It's not the only example of such an experimental disagreement. In fact, one of ...

Dark-decay search: the UCNA experiment at Los Alamos National Laboratory For more than 20 years, physicists have been unable to explain why two types of experiment yield different values for the ...

(Inside Science) — Exactly how long a neutron lives is currently under debate. Now researchers suggest this mystery could be solved if neutrons sometimes decay into particles of dark matter, the ...

The NIST Center for Neutron Research where the beam experiment was done. (Courtesy: Ronald Cappelletti/NIST) A re-evaluation of a 2005 measurement of the lifetime of the neutron has deepened the ...

When physicists strip neutrons from atomic nuclei, put them in a bottle, then count how many remain there after some time, they infer that neutrons radioactively decay in 14 minutes and 39 seconds, on ...

New research has enhanced scientists' understanding of how free neutrons decay into other particles. The work provides the first measurement of the energy spectrum of the photons that are released in ...

All the matter we know of in our Universe is made of both fundamental and composite particles. However, only a few of the fundamental particles are observed to be stable and not to decay into other ...

That neutrons can be transmuted to protons, electrons and antineutrinos through the process of beta decay is old hat. That photons sometimes also get in on the act was suspected, but until now never ...

Despite decades of taking measurements, scientists cannot agree on how long neutrons live. Neutrons are stable inside atoms, but on their own they decay in about 15 minutes, more or less, into a few ...