nEDM experiment at PSI: data-taking strategy and sensitivity of the dataset

Abstract

We report on the strategy used to optimize the sensitivity of our search for a neutron electric dipole moment at the Paul Scherrer Institute. Measurements were made upon ultracold neutrons stored within a single chamber at the heart of our apparatus. A mercury cohabiting magnetometer together with an array of cesium magnetometers were used to monitor the magnetic field, which was controlled and shaped by a series of precision field coils. In addition to details of the setup itself, we describe the chosen path to realize an appropriate balance between achieving the highest statistical sensitivity alongside the necessary control on systematic effects. The resulting irreducible sensitivity is better than 1*10-26 ecm. This contribution summarizes in a single coherent picture the results of the most recent publications of the collaboration.

arXiv commentSubmitted as a web of conference proceedings paper for PPNS2018

References in corpus (12)

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• A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
• Dynamic stabilization of the magnetic field surrounding the neutron electric dipole moment spectrometer at the Paul Scherrer Institute
• Plans for a Neutron EDM Experiment at SNS
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• Magnetic field uniformity in neutron electric dipole moment experiments
• The n2EDM experiment at the Paul Scherrer Institute
• Observation of gravitationally induced vertical striation of polarized ultracold neutrons by spin-echo spectroscopy
• Ultracold neutron detection with 6Li-doped glass scintillators, NANOSC: a fast ultracold neutron detector for the nEDM experiment at the Paul Scherrer Institute
• Dipole-Field Contributions to Geometric-Phase-Induced False Electric-Dipole Moment Signals for Particles in Traps
• Solid deuterium surface degradation at ultracold neutron sources
• Gravitationally enhanced depolarization of ultracold neutrons in magnetic field gradients, and implications for neutron electric dipole moment measurements

Cited by in corpus (10)

• Measurement of the permanent electric dipole moment of the neutron
• Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment
• The n2EDM experiment at the Paul Scherrer Institute
• Neutron optics of the PSI ultracold neutron source: characterization and simulation
• A search for neutron to mirror neutron oscillation using neutron electric dipole moment measurements
• Statistical sensitivity of the nEDM apparatus at PSI to neutron mirror-neutron oscillations
• Data blinding for the nEDM experiment at PSI
• The neutron electric dipole moment experiment at the Spallation Neutron Source
• On the Quantum Uncertainty of the Neutron Electric Dipole Moment
• A novel technique of extracting UCN lifetimes from storage bottle measurements dominated by scattering losses