Nov 23 – 25, 2020
Europe/Stockholm timezone

Flamedisx: Fast likelihood analysis in more dimensions for xenon TPCs

Nov 25, 2020, 9:15 AM


Pueh-Leng Tan (Stockholm University)


Liquid xenon time-projection chambers are the world’s most sensitive detectors for a wide range of dark matter candidates. We show that the statistical analysis of their data can be improved by replacing detector response Monte Carlo simulations with an equivalent deterministic calculation. This allows the use of high-dimensional undiscretized models, yielding up to ∼2times better discrimination of the dominant backgrounds. In turn, this could significantly extend the physics reach of upcoming experiments such as XENONnT and LZ, and bring forward a potential 5sigma dark matter discovery by over a year.

Abstract Track Astroparticle physics

Primary authors

Dr Jelle Aalbers (Stockholm University) Mr Vasile Cristian Antochi (Stockholm University) Jan Conrad Bart Pelssers (Stockholm University) Pueh-Leng Tan (Stockholm University)

Presentation materials