Speaker
Nikolaus Stephan Edler von Schickh
(PSI - Paul Scherrer Institut)
Description
Achieving the n2EDM baseline sensitivity of 1×10⁻²⁷ e·cm at the Paul Scherrer Institut demands precise monitoring of the magnetic field experienced by the neutrons. This is achieved using optically pumped ¹⁹⁹Hg co-magnetometers, which operate in the same storage volumes as the neutrons. Their role is crucial, as they guard against a class of systematic shifts that cannot be mitigated otherwise. Furthermore, their noise performance is critical to avoid dominating the experiment’s statistical uncertainties.
This contribution presents an overview of the mercury co-magnetometer system, recent upgrades and our latest measurement results.
Acknowledgement of grants: SNF #10001566
Author
Nikolaus Stephan Edler von Schickh
(PSI - Paul Scherrer Institut)