Probing sub-eV particles with polarized Helium 3
Mathieu Guigue
TL;DR
This paper discusses a new experimental approach using polarized Helium-3 to detect hypothetical sub-electronvolt particles through measurements of depolarization rates, aiming to enhance sensitivity to short-range spin-dependent forces.
Contribution
It introduces a dedicated experimental setup at the Institute Laue Langevin designed to improve detection sensitivity for short-range spin-dependent interactions.
Findings
Design of a sensitive depolarization measurement experiment
Initial status and progress of the experimental setup
Potential to set new constraints on sub-eV particles
Abstract
Proceeding of the "Journ\'{e}es de Rencontre Jeunes Chercheurs" 2013. Measuring the depolarization rate of a He hyperpolarized gas is a sensitive method to probe hypothetical short-range spin-dependent forces. A dedicated experiment is being set up at the Institute Laue Langevin in Grenoble to improve the sensitivity. The status of the experiment is detailed in this paper.
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Taxonomy
TopicsAtomic and Subatomic Physics Research · Quantum, superfluid, helium dynamics · Dark Matter and Cosmic Phenomena