I. Rienäcker
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Temperature-dependent ultracold neutron transmission in gas: A test of the Young-Koppel model Open
The Young-Koppel (YK) model describes comprehensively the interaction of slow neutrons with diatomic gases such as H2 and H22. This paper reports on the first experimental results of ultracold neutron (UCN) scattering over a wide temperatu…
Temperature dependent ultracold neutron transmission in D$_2$ gas $-$ a test of the Young-Koppel model Open
The Young-Koppel model (YK) describes comprehensively the interaction of slow neutrons with diatomic gases such as H$_2$ and D$_2$. This paper reports on the first experimental results of ultracold neutron (UCN) scattering over a wide temp…
Time-of-flight spectroscopy of ultracold neutrons at the PSI UCN source Open
The ultracold neutron (UCN) source at the Paul Scherrer Institute (PSI) provides high intensities of storable neutrons for fundamental physics experiments. The neutron velocity spectrum parallel to the beamline axis was determined by time-…
View article: Publisher’s Note: “The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements” [Rev. Sci. Instrum. 93, 095105 (2022)]
Publisher’s Note: “The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements” [Rev. Sci. Instrum. 93, 095105 (2022)] Open
status: Published
View article: The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements
The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements Open
We present the magnetically shielded room (MSR) for the n2EDM experiment at the Paul Scherrer Institute, which features an interior cubic volume with each side of length 2.92 m, thus providing an accessible space of 25 m3. The MSR has 87 o…
Improved Search for Neutron to Mirror-Neutron Oscillations in the Presence of Mirror Magnetic Fields with a Dedicated Apparatus at the PSI UCN Source Open
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 signals of hypothetical neutron (n) to mirror-neutron (n′) tr…
View article: The design of the n2EDM experiment: nEDM Collaboration
The design of the n2EDM experiment: nEDM Collaboration Open
We present the design of a next-generation experiment, n2EDM, currently under construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim of carrying out a high-precision search for an electric dipole mom…
View article: Johnson-Nyquist noise effects in neutron electric-dipole-moment experiments
Johnson-Nyquist noise effects in neutron electric-dipole-moment experiments Open
Magnetic Johnson-Nyquist noise (JNN) originating from metal electrodes, used\nto create a static electric field in neutron electric-dipole-moment (nEDM)\nexperiments, may limit the sensitivity of measurements. We present here the\nfirst de…
View article: Measurement of the Permanent Electric Dipole Moment of the Neutron
Measurement of the Permanent Electric Dipole Moment of the Neutron Open
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 magnetic fields with ultracold neutrons. Our measurement stands…
Higher spin algebras and large N = 4 holography Open
A new family of higher spin algebras that arises upon restricting matrix extensions of shs[λ] is found. We identify coset CFTs realising these symmetry algebras, and thus propose new higher spin-CFT dual pairs. These higher spin theories a…