7 papers
First Search for Ultraheavy Dark Matter Using a Magnetically Levitated Particle
Dennis G. Uitenbroek, Dorian W. P. Amaral, Juehang Qin +4
We present the first search for ultraheavy dark matter using a magnetically levitated particle. The POLONAISE experiment uses a milligram-scale ferromagnet levitated in a supercond…
Towards the Direct Detection of Composite Ultraheavy Dark Matter in Quantum Sensor Arrays
Dorian W. P. Amaral, Erqian Cai, Andrew J. Long +2
Quantum sensor arrays have recently been proposed as a promising platform for the direct detection of ultraheavy dark matter, which is typically assumed to behave as a point-like p…
Physics-informed continuous normalizing flows to learn the electric field within a time-projection chamber
Ivy Li, Peter Gaemers, Juehang Qin +4
Accurate position reconstruction in noble-element time-projection chambers (TPCs) is critical for rare-event searches in astroparticle physics, yet is systematically limited by ele…
Mechanical Sensors for Ultraheavy Dark Matter Searches via Long-range Forces
Juehang Qin, Dorian W. P. Amaral, Sunil A. Bhave +10
Dark matter candidates with masses around the Planck-scale are theoretically well-motivated, and it has been suggested that it might be possible to search for dark matter solely vi…
FlowVAT: Normalizing Flow Variational Inference with Affine-Invariant Tempering
Juehang Qin, Shixiao Liang, Christopher Tunnell
Multi-modal and high-dimensional posteriors present significant challenges for variational inference, causing mode-seeking behavior and collapse despite the theoretical expressiven…
Fast Bayesian Inference for Neutrino Non-Standard Interactions at Dark Matter Direct Detection Experiments
Dorian W. P. Amaral, Shixiao Liang, Juehang Qin +1
Multi-dimensional parameter spaces are commonly encountered in physics theories that go beyond the Standard Model. However, they often possess complicated posterior geometries that…