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SUMMARY:Speaker: Daniel Carney (LBL)-TITLE: Proposal for a Levitated Invisible Particle Sensor
DESCRIPTION:This is an In-Person [HYBRID] Event \nLOCATION: Sessler Conference Room – 50A – 5132 \nDATE: March 3\, 2023 \nTIME: 12:00 PM \nTITLE: Proposal for a Levitated Invisible Particle Sensor \nABSTRACT: Recently Dave Moore (Yale)\, Kyle Leach (Mines) and I proposed the use of a levitated mechanical quantum sensor combined with a pixelated electron/photon detector to look for invisible particles\, particularly heavy sterile neutrinos in the keV-MeV range. The basic device consists of ~100nm scale silica spheres implanted with radioisotopes. When the isotope decays\, via beta or electron capture\, it will generically eject e-/gammas as well as a neutrino which escape the nanosphere\, while the daughter atom is trapped in the sphere and causes it to recoil. With measurement precision on the sphere recoil at the “standard quantum limit”–which we have already achieved in a similar device at Yale–one can kinematically reconstruct the emitted neutrino momentum. I’ll outline how this works\, compare it to previous AMO-y approaches (e.g. HUNTER)\, and talk about what we’d like to do at LBL. \nZOOM INFORMATION – \nJoin Zoom Meeting:  https://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09 \nMeeting ID: 950 1669 6011\nPasscode: 247722
URL:https://inpa.lbl.gov/event/speaker-daniel-carney-lbl-title-proposal-for-a-levitated-invisible-particle-sensor/
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