3:30–4:30 pm Zoom
Zoom link will be emailed to our events mailing list. To be added to this this, send your request to Tiffany Kurns.
The HUNTER Sterile Neutrino Search
Jeff Martoff, Temple University
Particle/AMO experiment
The HUNTER experiment (Heavy Unseen Neutrinos from Total Energy-momentum Reconstruction) is a search for sterile neutrinos with masses in the 20-280 keV range. The neutrino missing mass will be reconstructed from 131-Cs electron capture decays occurring in a magneto-optically trapped sample of atoms. Reaction-microscope spectrometers will be used to detect all charged decay products with high solid angle efficiency, and a position- and energy-sensitive scintillator array detects x-rays, each with sufficient resolution to reconstruct the neutrino missing mass. The experiment requires EUHV pressure, very uniform ion extraction electric field and electron confinement magnetic field, large solid angle for x-ray detection, and precision in-situ alignment. Procurement of major components of HUNTER is well underway, implementing some innovative solutions to these requirements.
We thank the W. M. Keck Foundation, the Gordon and Betty Moore Foundation, and our respective universities for financial support of HUNTER.