PoS - Proceedings of Science
Volume 380 - Particles and Nuclei International Conference 2021 (PANIC2021) - Tests of symmetries and conservation laws
The TUCAN Neutron Electric Dipole Moment Experiment
M. McCrea*  on behalf of the TUCAN Collaboration
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Pre-published on: March 24, 2022
Published on:
Abstract
The goal of the TRIUMF Ultra-Cold Advanced Neutron (TUCAN) Collaboration is to successfully make an new measurement of the neutron electric dipole measurement (nEDM) experiment with an uncertainty of 1 × 10−27 e-cm in 400 days of run time, a one order of magnitude improvement compared to the current world’s best. The experiment is unique in using a spallation-driven superfluid helium (He-II) source of ultracold neutrons (UCN). We are now at the stage of upgrading the UCN source to produce world-leading UCN densities, using a new He-II cryostat that has undergone cryogenic testing at KEK in 2020-21. We are also assembling the experimental components of the EDM experiment, including a magnetically shielded room, coils, and atomic magnetometers.
DOI: https://doi.org/10.22323/1.380.0459
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