activity
20042026
most citedMeasurement of the permanent electric dipole moment of the neutron

619 citations · 2.7k across the 52 of their papers we have counts for

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8 papers · 1 filter

nucl-ex2024

Temperature dependent ultracold neutron transmission in D gas a test of the Young-Koppel model

G. Bison, R. Grössle, K. Kirch +4

The Young-Koppel model (YK) describes comprehensively the interaction of slow neutrons with diatomic gases such as H and D. This paper reports on the first experimental res…

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…

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…

nucl-ex2014★ 37 cited

A measurement of the neutron to 199Hg magnetic moment ratio

S. Afach, C. A. Baker, G. Ban +51

The neutron gyromagnetic ratio has been measured relative to that of the 199Hg atom with an uncertainty of 0.8 ppm. We employed an apparatus where ultracold neutrons and mercury at…

nucl-ex2011★ 3 cited

An Improved Search for the Neutron Electric Dipole Moment

M. Burghoff, A. Schnabel, G. Ban +34

A permanent electric dipole moment of fundamental spin-1/2 particles violates both parity (P) and time re- versal (T) symmetry, and hence, also charge-parity (CP) symmetry since th…