41 citations · 122 across the 21 of their papers we have counts for
17 papers · 1 filter
A New High-Intensity Source for Ultracold Neutrons
K. Abe, S. Ahmed, B. Algohi +78
The TRIUMF UltraCold Advanced Neutron (TUCAN) collaboration has completed a new superthermal source for ultracold neutrons (UCNs) at TRIUMF. Neutrons produced in a spallation targe…
A gaseous-helium cooling system for silicon detectors in the Nab experiment
Love Richburg, Noah Birge, Nadia Fomin +40
The Nab experiment aims to extract the neutron beta decay correlation coefficients 'a' and 'b'. This will be accomplished using a 7 m tall electromagnetic spectrometer which measur…
From Commissioning to Precision Data-Taking: Resolving Operational Challenges in the Nab Detector Systems
L. J. Broussard, H. Acharya, R. Alarcon +36
Our understanding of the weak mixing of quarks, described by the Cabibbo Kobayashi Maskawa (CKM) matrix, currently presents an anomaly. Thanks to major strides in both theory and e…
Ultracold Neutron Guide-Coating Facility at U.Winnipeg
T. Hepworth, A. Zahra, B. Algohi +72
We report the construction and commissioning of a new ultracold neutron (UCN) guide-coating facility at the University of Winnipeg. The facility employs pulsed laser deposition (PL…
Neutron EDM Experiment with an Advanced Ultracold Neutron Source at TRIUMF
T. Higuchi, B. Algohi, D. Anthony +67
The TRIUMF Ultracold Advanced Neutron (TUCAN) collaboration has been developing a high-intensity ultracold neutron (UCN) source aimed at searching for the neutron electric dipole m…
Cryogenic systems for the TUCAN EDM experiment
Jeffery W. Martin, B. Algohi, D. Anthony +60
The TUCAN (TRIUMF UltraCold Advanced Neutron) Collaboration is completing a new ultracold neutron (UCN) source. The UCN source will deliver UCNs to a neutron electric dipole moment…
Polarized cold-neutron reflectometry at JRR-3/MINE2 for the development of ultracold-neutron spin analyzers for a neutron EDM experiment at TRIUMF
Takashi Higuchi, Hiroaki Akatsuka, Alexis Brossard +18
The neutron electric dipole moment (EDM) is a sensitive probe for currently undiscovered sources of charge-parity symmetry violation. As part of the TRIUMF Ultracold Advanced Neutr…
A diffuse scattering model of ultracold neutrons on wavy surfaces
S. Imajo, H. Akatsuka, K. Hatanaka +10
Metal tubes plated with nickel-phosphorus are used in many fundamental physics experiments using ultracold neutrons (UCN) because of their ease of fabrication. These tubes are usua…
Estimated performance of the TRIUMF ultracold neutron source and electric dipole moment apparatus
Steve Sidhu, Wolfgang Schreyer, Sean Vanbergen +4
Searches for the permanent electric dipole moment of the neutron (nEDM) provide strong constraints on theories beyond the Standard Model of particle physics. The TUCAN collaboratio…
The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF
Ryohei Matsumiya, Hiroaki Akatsuka, Chris P. Bidinosti +45
The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims at a precision neutron electric dipole moment (nEDM) measurement with an uncertainty of $10^{-27}\,e\cdot\mathrm{c…
Optimizing neutron moderators for a spallation-driven ultracold-neutron source at TRIUMF
W. Schreyer, C. A. Davis, S. Kawasaki +5
We report on our efforts to optimize the geometry of neutron moderators and converters for the TRIUMF UltraCold Advanced Neutron (TUCAN) source using MCNP simulations. It will use…
A beamline for fundamental neutron physics at TRIUMF
S. Ahmed, T. Andalib, M. J. Barnes +44
This article describes the new primary proton beamline 1U at TRIUMF. The purpose of this beamline is to produce ultracold neutrons (UCN) for fundamental-physics experiments. It del…
Towards TUCAN's Search for the Neutron Electric Dipole Moment
Wolfgang Schreyer, TUCAN collaboration
The TRIUMF ultracold advanced neutron (TUCAN) collaboration is a transpacific collaboration with the objective to measure the neutron electric dipole moment. We aim for an unpreced…
First ultracold neutrons produced at TRIUMF
S. Ahmed, E. Altiere, T. Andalib +50
We installed a source for ultracold neutrons at a new, dedicated spallation target at TRIUMF. The source was originally developed in Japan and uses a superfluid-helium converter co…
Monte Carlo simulations for the optimization and data analysis of experiments with ultracold neutrons
N. J. Ayres, E. Chanel, B. Clement +5
Ultracold neutrons (UCN) with kinetic energies up to 300 neV can be stored in material or magnetic confinements for hundreds of seconds. This makes them a very useful tool for prob…
Consistent description of UCN transport properties
S. Wlokka, P. Fierlinger, A. Frei +6
We have investigated the diffuse reflection probabilities of Replica guides for ultra-cold neutrons (UCN) using the so-called helium method. For the first time we could establish a…
PENTrack---a simulation tool for ultracold neutrons, protons, and electrons in complex electromagnetic fields and geometries
Wolfgang Schreyer, Tatsuya Kikawa, Martin J. Losekamm +2
Modern precision experiments trapping low-energy particles require detailed simulations of particle trajectories and spin precession to determine systematic measurement limitations…