activity
20182025
most citedMeasurement of the permanent electric dipole moment of the neutron

619 citations · 782 across the 12 of their papers we have counts for

collaborators

12 papers

nucl-ex2025

Measurement of the neutron incoherent scattering length of Hg using stored ultracold neutrons

C. Abel, K. Bodek, E. Chanel +35

We present the first direct measurement of the neutron incoherent scattering length of Hg. The measurement was performed with the Ramsey apparatus of the neutron electric…

physics.ins-det2024

Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment

C. Abel, N. J. Ayres, G. Ban +63

We present a coil system designed to generate a highly uniform magnetic field for the n2EDM experiment at the Paul Scherrer Institute. It consists of a main coil and a set of…

nucl-ex2023★ 6 cited

Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI

N. J. Ayres, G. Bison, K. Bodek +44

We report on a search for a new, short-range, spin-dependent interaction using a modified version of the experimental apparatus used to measure the permanent neutron electric dipol…

nucl-ex2022

Search for ultralight axion dark matter in a side-band analysis of a 199Hg free-spin precession signal

C. Abel, N. J. Ayres, G. Ban +35

Ultra-low-mass axions are a viable dark matter candidate and may form a coherently oscillating classical field. Nuclear spins in experiments on Earth might couple to this oscillati…

physics.ins-det2021★ 9 cited

Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment

C. Abel, N. J. Ayres, G. Ban +50

Experiments dedicated to the measurement of the electric dipole moment of the neutron require outstanding control of the magnetic field uniformity. The neutron electric dipole mome…

physics.ins-det2021★ 53 cited

The design of the n2EDM experiment

N. J. Ayres, G. Ban, L. Bienstman +58

We present the design of a next-generation experiment, n2EDM, currently under construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim of carr…

hep-ex2020★ 619 cited

Measurement of the permanent electric dipole moment of the neutron

C. Abel, S. Afach, N. J. Ayres +81

We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magn…

physics.data-an2019★ 5 cited

Data blinding for the nEDM experiment at PSI

N. J. Ayres, G. Ban, G. Bison +42

Psychological bias towards, or away from, a prior measurement or a theory prediction is an intrinsic threat to any data analysis. While various methods can be used to avoid the bia…

physics.ins-det2018★ 14 cited

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

C. Abel, N. J. Ayres, G. Ban +40

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…

physics.ins-det2018★ 35 cited

Magnetic field uniformity in neutron electric dipole moment experiments

C. Abel, N. Ayres, T. Baker +53

Magnetic field uniformity is of the utmost importance in experiments to measure the electric dipole moment of the neutron. A general parametrization of the magnetic field in terms…

physics.ins-det2018★ 34 cited

The n2EDM experiment at the Paul Scherrer Institute

C. Abel, N. J. Ayres, G. Ban +45

We present the new spectrometer for the neutron electric dipole moment (nEDM) search at the Paul Scherrer Institute (PSI), called n2EDM. The setup is at room temperature in vacuum…

nucl-ex2018★ 7 cited

Statistical sensitivity of the nEDM apparatus at PSI to neutron mirror-neutron oscillations

C. Abel, N. Ayres, G. Bison +33

The neutron and its hypothetical mirror counterpart, a sterile state degenerate in mass, could spontaneously mix in a process much faster than the neutron -decay. Two groups hav…