619 citations · 1.8k across the 44 of their papers we have counts for
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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…
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…
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…
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…
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…
New constraints on Lorentz invariance violation from the neutron electric dipole moment
I. Altarev, C. A. Baker, G. Ban +40
We propose an original test of Lorentz invariance in the interaction between a particle spin and an electromagnetic field and report on a first measurement using ultracold neutrons…
Neutron to Mirror-Neutron Oscillations in the Presence of Mirror Magnetic Fields
I. Altarev, C. A. Baker, G. Ban +43
We performed ultracold neutron (UCN) storage measurements to search for additional losses due to neutron (n) to mirror-neutron (n') oscillations as a function of an applied magneti…
Test of Lorentz invariance with spin precession of ultracold neutrons
I. Altarev, C. A. Baker, G. Ban +43
A clock comparison experiment, analyzing the ratio of spin precession frequencies of stored ultracold neutrons and Hg atoms is reported. %57 No daily variation of this rati…
Cubic boron nitride: a new prospective material for ultracold neutron application
Yu. Sobolev, Th. Lauer, Yu. Borisov +17
For the first time, the neutron optical wall-potential of natural cubic boron nitride (cBN) was measured at the ultracold neutron (UCN) source of the research reactor TRIGA Mainz u…
An Improved Neutron Electric Dipole Moment Experiment
M. Kuźniak, I. Altarev, G. Ban +41
A new measurement of the neutron EDM, using Ramsey's method of separated oscillatory fields, is in preparation at the new high intensity source of ultra-cold neutrons (UCN) at the…
A direct experimental limit on neutron -- mirror neutron oscillations
G. Ban, K. Bodek, M. Daum +22
In case a mirror world with a copy of our ordinary particle spectrum would exist, the neutron n and its degenerate partner, the mirror neutron , could potentially mix and…
Comments on the PLA article 'UCN anomalous losses and the UCN capture cross section on material defects' [Phys. Lett. A 335 (2005) 327]
M. Daum, P. Geltenbort, R. Henneck +1
We comment on the paper `UCN anomalous losses and the UCN capture cross section on material defects' by A. Serebrov et al., Phys. Lett. A 335 (2005) 327 - 336. Data presented do no…
Analysing powers for the reaction and for np elastic scattering from 270 to 570 MeV
M. Daum, M. Finger, M. Finger +10
The analysing power of the reaction for neutron energies between threshold and 570 MeV has been determined using a transversely polarised…
The reaction from threshold up to 570 MeV
M. Daum, M. Finger, M. Finger +10
The reaction has been studied in a kinematically complete measurement with a large acceptance time-of-flight spectrometer for incident neutron energies…