Decades of weird experimental results appeared to support the existence of the sterile neutrino, a hypothetical particle that would solve multiple mysteries. But recent experiments have killed hope of finding these phantoms, leaving physicists to wonder what might explain their anomalies.
Neutrino detectors rely on photomultiplier tubes such as this one from the Miniboone experiment.
Fermilab
Introduction
Neutrinos have about as little influence as a particle can have. They have essentially no heft, no electric charge, and no “color” charge. As a result, the neutrino has no connection with most of nature’s forces; it can slip through whole planets and stars without striking a single atom.
