Mainz 2017 – scientific programme

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A: Fachverband Atomphysik

A 26: Poster Session II

A 26.47: Poster

Wednesday, March 8, 2017, 17:00–19:00, P OG1

Progress towards hyperpolarized liquid xenon for the Cosmic Axion Spin Precession Experiment (CASPEr-Wind) — •Gary Centers¹, John Blanchard¹, Nataniel Figueroa¹, Marina Gil Sendra¹, Arne Wickenbrock¹, Dmitry Budker¹, and CASPEr Collaboration² — ¹Helmholtz Institute Mainz, Johannes Gutenberg University, 55128 Mainz, Germany — ²Various locations

The Cosmic Axion Spin Precession Experiment (CASPEr), particularly the CASPEr-Wind, is a detection scheme searching for light particles that have a coupling to nuclear spin; some examples being dark matter candidates like the axion/axion-like particles, hidden photons, or any pseudo-Goldstone boson[1,2,3].

Current progress towards the condensation of hyperpolarized xenon (Xe) gas as the main sample for the CASPEr is presented. Included will be an overview of condensation process, a review of gas and liquid Xe relaxation processes, components designed for maintaining polarization during the condensation, and preliminary process/component characterizations.

1. D. Budker et al., Phys. Rev. X 4, 021030 (2014).
2. P. W. Graham and S. Rajendran, Phys. Rev. D 88, 035023 (2013).
3. P. W. Graham et al., Annu. Rev. Nucl. Part. Sci. 65, 485514 (2015).