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22 September 2022
Blackett Laboratory, Imperial College London
Europe/London timezone

Dark matter searches using levitated optomechanics

22 Sept 2022, 14:40
20m
Lecture Theatre 2 (Level 1) (Blackett Laboratory, Imperial College London)

Lecture Theatre 2 (Level 1)

Blackett Laboratory, Imperial College London

Prince Consort Road, London SW7 2AZ

Speaker

Robert S James

Description

Levitated optomechanics provides a novel platform to test fundamental physics. One such application provides a unique directional dark matter direct detection technique to explore alternative parameter space to that being investigated by large scale experiments deployed underground. We detail our experiment, capable of resolving collisions in all three dimensions, utilising nanoparticles (10^-18 kg) for composite dark matter searches in the 10 MeV – 10 GeV mass range. We detail the theoretical calculations, experimental apparatus, data analysis framework and statistical inference that we aim to use to obtain results competitive with world-leading dark matter constraints. We present sensitivity projections for our experiment, informed by an initial characterisation of relevant backgrounds. We also discuss planned future work to explore alternative dark matter models using this experiment and complimentary approaches.

Presentation materials