6 citations · 16 across the 12 of their papers we have counts for
15 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 $(…
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…
Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment
N. J. Ayres, G. Ban, G. Bison +47
The n2EDM experiment at the Paul Scherrer Institute aims to conduct a high-sensitivity search for the electric dipole moment of the neutron. Magnetic stability and control are achi…
Measurement of the neutron incoherent scattering length of Hg using stored ultracold neutrons
C. Abel, K. Bodek, E. Chanel +35
We present the first direct measurement of the neutron incoherent scattering length of Hg. The measurement was performed with the Ramsey apparatus of the neutron electric…
Ultracold neutron energy spectrum and storage properties from magnetically induced spin depolarization
N. J. Ayres, G. Ban, G. Bison +53
We present a novel method for extracting the energy spectrum of ultracold neutrons from magnetically induced spin depolarization measurements using the n2EDM apparatus. This method…
Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment
C. Abel, N. J. Ayres, G. Ban +63
We present a coil system designed to generate a highly uniform magnetic field for the n2EDM experiment at the Paul Scherrer Institute. It consists of a main coil and a set of…
Achieving ultra-low and -uniform residual magnetic fields in a very large magnetically shielded room for fundamental physics experiments
N. J. Ayres, G. Ban, G. Bison +47
High-precision searches for an electric dipole moment of the neutron (nEDM) require stable and uniform magnetic field environments. We present the recent achievements of degaussing…
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…
Upgrade of ASACUSA's Antihydrogen Detector
V. Kraxberger, C. Amsler, H. Breuker +35
The goal of the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) CUSP experiment at CERN's Antiproton Decelerator is to measure the ground state hyperfine splitt…
Cyclotron cooling to cryogenic temperature in a Penning-Malmberg trap with a large solid angle acceptance
C. Amsler, H. Breuker, S. Chesnevskaya +35
Magnetized nonneutral plasma composed of electrons or positrons couples to the local microwave environment via cyclotron radiation. The equilibrium plasma temperature depends on th…
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 Principal Quantum Number Distribution in a Beam of Antihydrogen Atoms
B. Kolbinger, C. Amsler, S. Arguedas Cuendis +35
The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in a beam at the CERN An…