619 citations · 1.5k across the 15 of their papers we have counts for
15 papers
Optically Pumped Polarized He Ion Source Development for RHIC/EIC
A. Zelenski, G. Atoian, E. Beebe +12
The proposed polarized He acceleration in RHIC and the future Electron-Ion Collider will require about ions in the source pulse. A new technique had bee…
Measurement of the Parity-Odd Angular Distribution of Gamma Rays From Polarized Neutron Capture on Cl
N. Fomin, R. Alarcon, L. Alonzi +61
We report a measurement of two energy-weighted gamma cascade angular distributions from polarized slow neutron capture on the Cl nucleus, one parity-odd correlation propor…
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…
Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment
C. Abel, S. Afach, N. J. Ayres +57
An array of sixteen laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 201…
Monte Carlo calculation and verification of the geometrical factors for the NPDGamma experiment
Kyle B. Grammer, David Blyth, James D. Bowman +5
The NPDGamma experiment measures the parity-violating asymmetry in -ray emission in the capture of polarized neutrons on liquid parahydrogen. The sensitivity to the asymmetry fo…
Enhanced Polarization of Low Pressure He through Metastability-Exchange Optical Pumping at High Field
J. D. Maxwell, J. Alessi, G. Atoian +7
We report high steady-state nuclear polarization of 1 torr He gas nuclei via metastability-exchange optical pumping at magnetic fields above 2 T. The introduction of highly pol…
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…
First Observation of -odd Asymmetry in Polarized Neutron Capture on Hydrogen
D. Blyth, J. Fry, N. Fomin +61
We report the first observation of the parity-violating 2.2 MeV gamma-ray asymmetry in neutron-proton capture using polarized cold neutrons incident on a liquid parahydr…
Measurement of the absolute neutron beam polarization from a supermirror polarizer and the absolute efficiency of a neutron spin rotator for the NPDGamma experiment using a polarized He neutron spin-filter
M. M. Musgrave, S. Baessler, S. Balascuta +26
Accurately measuring the neutron beam polarization of a high flux, large area neutron beam is necessary for many neutron physics experiments. The Fundamental Neutron Physics Beamli…
Search for axion-like dark matter through nuclear spin precession in electric and magnetic fields
C. Abel, N. J. Ayres, G. Ban +45
We report on a search for ultra-low-mass axion-like dark matter by analysing the ratio of the spin-precession frequencies of stored ultracold neutrons and Hg atoms for an a…
Ultracold neutron detection with 6Li-doped glass scintillators, NANOSC: a fast ultracold neutron detector for the nEDM experiment at the Paul Scherrer Institute
G. Ban, G. Bison, K. Bodek +32
This paper summarizes the results from measurements aiming to characterize ultracold neutron detection with 6Li-doped glass scintillators. Single GS10 or GS20 scintillators, with a…
A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
J. M. Pendlebury, S. Afach, N. J. Ayres +47
We present for the first time a detailed and comprehensive analysis of the experimental results that set the current world sensitivity limit on the magnitude of the electric dipole…
Gravitational Depolarization of Ultracold Neutrons: Comparison with Data
S. Afach, N. J. Ayres, C. A. Baker +47
We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a var…
Observation of gravitationally induced vertical striation of polarized ultracold neutrons by spin-echo spectroscopy
S. Afach, N. J. Ayres, G. Ban +45
We describe a spin-echo method for ultracold neutrons (UCNs) confined in a precession chamber and exposed to a magnetic field. We have demonstrated that the ana…
New measurement of the scattering cross section of slow neutrons on liquid parahydrogen from neutron transmission
K. B. Grammer, R. Alarcon, L. Barrón-Palos +25
Liquid hydrogen is a dense Bose fluid whose equilibrium properties are both calculable from first principles using various theoretical approaches and of interest for the understand…