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Sep 22 – 27, 2024
Jefferson Lab
US/Eastern timezone

Spin Transport for the PSI n2EDM Experiment

Sep 27, 2024, 1:50 PM
20m
Cebaf Center Auditorium (Jefferson Lab)

Cebaf Center Auditorium

Jefferson Lab

12000 Jefferson Ave. Newport News, VA 23606

Speaker

Christopher Crawford (University of Kentucky, Dept. Physics & Astronomy)

Description

The CP-violating neutron electric dipole moment (nEDM) is sensitive to physics beyond the Standard Model which is needed to explain the baryon asymmetry in our universe. The most precise measurement of the nEDM, carried out at Paul Scherrer Institute (PSI), is consistent with zero with an upper limit of $1.8\times10^{−26}~ e$ cm at the 90% confidence level. To reach an order of magnitude better sensitivity, the n2EDM experiment is being commissioned at PSI. In this completely redesigned apparatus, polarized ultracold neutrons from a 5 T superconducting solenoid are transported through six mu-metal layers of the Magnetic Shield Room into a uniform 1 uT precession field via a system a surface current spin transport coils. I will present the design, fabrication, and testing of these coils.

Primary author

Christopher Crawford (University of Kentucky, Dept. Physics & Astronomy)

Co-authors

Mr Andrew Mullins (University of Kentucky) Dr David Bowles (Univesrity of Kentucky) Dr Efrain Segarra (Paul Scherrer Institute) Dr Geza Zsigmond (Paul Scherrer Institute) Dr Gian Luca Caratsch (Paul Scherrer Institute)

Presentation materials