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29 March 2023 to 1 April 2023
UCLA
US/Pacific timezone

Searching for axion-like dark matter with precision NMR: the Cosmic Axion Spin Precession Experiments

1 Apr 2023, 08:45
15m
PAB- 1-425 (UCLA)

PAB- 1-425

UCLA

UCLA Department of Physics and Astronomy 475 Portola Plaza, Los Angeles, CA 90095

Speaker

Alexander Sushkov

Description

The dark matter puzzle is one of the most important open problems in modern physics. The axion is a compelling dark matter candidate, since it resolves the strong-CP problem of quantum chromodynamics. I will focus on the Cosmic Axion Spin Precession Experiments (CASPEr-electric, CASPEr-gradient) that use nuclear magnetic resonance to search for the EDM and the gradient interactions of axion-like dark matter. Recent prototype CASPEr experiments have achieved design sensitivity in the nano-electronvolt mass range. We are now developing the next-generation searches, with the goal of achieving, and possibly circumventing, the quantum limits on their sensitivity. Our objective is to develop the experimental search that is sensitive to the QCD axion dark matter over a broad range of masses.

Primary author

Presentation materials