619 citations · 678 across the 8 of their papers we have counts for
9 papers
Laboratory constraints on peV-scale mass splitting between ordinary and sterile neutron states
N. J. Ayres, Z. Berezhiani, G. Bison +19
Sterile states of matter, represented by a parallel ``mirror'' sector, may contribute to the observed dark matter in the Universe. We investigated the parameter space of neutron $(…
A large 'Active Magnetic Shield' for a high-precision experiment
C. Abel, N. J. Ayres, G. Ban +48
We present a novel Active Magnetic Shield (AMS), designed and implemented for the n2EDM experiment at the Paul Scherrer Institute. The experiment will perform a high-sensitivity se…
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…
Time-of-flight spectroscopy of ultracold neutrons at the PSI UCN source
G. Bison, W. Chen, P. -J. Chiu +9
The ultracold neutron (UCN) source at the Paul Scherrer Institute (PSI) provides high intensities of storable neutrons for fundamental physics experiments. The neutron velocity spe…
Characterization of ultracold neutron production in thin solid deuterium films at the PSI Ultracold Neutron source
G. Bison, B. Blau, W. Chen +13
We determined the ultracold neutron (UCN) production rate by superthermal conversion in the solid deuterium (sD) moderator of the UCN source at the Paul Scherrer Institute (PSI…
The `n2EDM MSR' -- a very large magnetically shielded room with an exceptional performance for fundamental physics measurements
N. J. Ayres, G. Ban, G. Bison +41
We present the magnetically shielded room (MSR) for the n2EDM experiment at the Paul Scherrer Institute which features an interior cubic volume with each side of length 2.92m, thus…
Improved search for neutron to mirror-neutron oscillations in the presence of mirror magnetic fields with a dedicated apparatus at the PSI UCN source
N. J. Ayres, Z. Berezhiani, R. Biondi +22
While the international nEDM collaboration at the Paul Scherrer Institut (PSI) took data in 2017 that covered a considerable fraction of the parameter space of claimed potential si…
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…
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…