"HUNTER: Searching for Heavy Unseen Neutrinos by Total Energy-momentum Reconstruction" by Paul Hamilton (UCLA)

Wednesday, February 7, 2018 - 12:00pm to 1:00pm
HEAP Seminars

HUNTER is a new laboratory-scale experiment being developed at UCLA to search for ‘sterile’ neutrinos.  Such neutrinos, with a keV-range mass, could account for the unidentified ‘dark matter’ known to comprise 90% of the mass of our galaxy. Sterile neutrinos would be detected as rare events (possibly less than 1 in 106 ) in decays of some radio-isotopes. By suspending in high vacuum a large number (100 million or more) of ultra-cold radioactive 131Cs atoms using a magneto-optical laser trap, and measuring the momenta of all emitted particles by time-of-flight, the emitted neutrino mass can be calculated for each decay. A first phase of this experiment will demonstrate the principle of reconstruction of the neutrino mass, and the ability to identify rare sterile neutrino events. 

Event Attachments: 
Knudsen 4-134