activity
20012026
most citedMeasurement of the permanent electric dipole moment of the neutron

619 citations · 1.8k across the 44 of their papers we have counts for

collaborators

45 papers

hep-ex2026

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 $(…

nucl-ex2026

New high-sensitivity search for neutron to mirror-neutron oscillations at the PSI UCN source

N. J. Ayres, Z. Berezhiani, G. Bison +19

In a search for potential signals of neutron (n) to mirror-neutron (n') oscillations, a collaboration centered at the Paul Scherrer Institute (PSI) investigated the remaining param…

physics.ins-det2023

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…

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-det2022★ 2 cited

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…