Speaker
Description
This work proposes a novel architecture that utilizes recent advancements in quantum-limited sensing technology and pixelated silicon sensors to search for new invisible particles. The design features a nanometer-scale, optically levitated sensor embedded with unstable radioisotopes, and surrounded by pixelated silicon detectors. By measuring the recoil of the optomechanical sensor at the standard quantum limit, alongside the momenta and energies of outgoing visible particles following the decay of the embedded isotopes, the total momentum of the emitted invisible particles can be fully reconstructed. This design primarily targets the search for heavy sterile neutrinos in the keV-MeV mass range. It can also be applied to explore new parameter space in other beyond Standard Model physics.
This talk will present the basic concept of the architecture, the detailed design, the simulations and preliminary test results.
