26–30 Aug 2019
Universität Zürich
Europe/Zurich timezone

【309】Development of a caesium magnetometer array for the n2EDM experiment

27 Aug 2019, 16:00
15m
G 55

G 55

Talk Nuclear, Particle- and Astrophysics (TASK) Nuclear, Particle- & Astrophysics

Speaker

Dr Georg Bison (PSI Villigen)

Description

The search for the neutron electric dipole moment $d_n$, carried on by the n2EDM experiment at PSI could provide a better insight on the baryon asymmetry of the universe and/or new physics. The experimental goal to reach an order of magnitude higher sensitivity than previous efforts, means its systematic effects need to be better controlled. The appearance of a false $d_n$ ($d^{false}_{Hg\rightarrow n}$) due to the different motional magnetic fields seen by the neutrons and Hg atoms of the comagnetometer is one of such obstacles. This study aims at developing and building a Cs-Magnetometer array to measure the magnetic field in the experiment with high-enough precision and accuracy to control the associated systematic uncertainty with $d^{false}_{Hg\rightarrow n}\leq 4 \times 10^{-28}e\textrm{cm}$.

Authors

Dr Georg Bison (PSI Villigen) Duarte Pais (Paul Scherrer Institut)

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