Comparison of ultracold neutron sources for fundamental physics measurements

Abstract

Ultracold neutrons (UCNs) are key for precision studies of fundamental parameters of the neutron and in searches for new CP violating processes or exotic interactions beyond the Standard Model of particle physics. The most prominent example is the search for a permanent electric dipole moment of the neutron (nEDM). We have performed an experimental comparison of the leading UCN sources currently operating. We have used a 'standard' UCN storage bottle with a volume of 32 liters, comparable in size to nEDM experiments, which allows us to compare the UCN density available at a given beam port.

arXiv comment20 pages, 30 Figures

References in corpus (41)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Big Bang Nucleosynthesis: 2015
• Electric Dipole Moments of Nucleons, Nuclei, and Atoms: The Standard Model and Beyond
• A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
• Flavour physics of leptons and dipole moments
• Measurement of the neutron lifetime using a gravitational trap and a low-temperature Fomblin coating
• Gravity Resonance Spectroscopy Constrains Dark Energy and Dark Matter Scenarios
• Experimental search for neutron - mirror neutron oscillations using storage of ultracold neutrons
• Demonstration of a solid deuterium source of ultra-cold neutrons
• Precision Measurement of the Neutron Beta-Decay Asymmetry
• A direct experimental limit on neutron -- mirror neutron oscillations
• Neutron Interferometry constrains dark energy chameleon fields
• Test of Lorentz invariance with spin precession of ultracold neutrons
• Neutron to Mirror-Neutron Oscillations in the Presence of Mirror Magnetic Fields
• Measurements of ultracold neutron lifetimes in solid deuterium
• Determination of the Axial-Vector Weak Coupling Constant with Ultracold Neutrons
• New source for ultracold neutrons at the Institut Laue-Langevin
• Measurement of the neutron $\beta$-asymmetry parameter $A_0$ with ultracold neutrons
• UCN Upscattering rates in a molecular deuterium crystal
• New constraints for CP-violating forces between nucleons in the range 10-4 cm - 1 cm
• Constraining interactions mediated by axion-like particles with ultracold neutrons
• Search for macroscopic CP violating forces using a neutron EDM spectrometer
• Probing Dark Energy models with neutrons
• Startup of the High-Intensity Ultracold Neutron Source at the Paul Scherrer Institute
• Ultracold neutron production and up-scattering in superfluid helium between 1.1 K and 2.4 K
• Observation of gravitationally induced vertical striation of polarized ultracold neutrons by spin-echo spectroscopy
• V2:Performance of the solid deuterium ultra-cold neutron source at the pulsed reactor TRIGA Mainz
• Constraining spin-dependent short range interactions using neutron spin precession close to a mirror
• Gravitational Depolarization of Ultracold Neutrons: Comparison with Data
• Spectrometer for new gravitational experiment with UCN
• Neutron production and thermal moderation at the PSI UCN source
• Experimental study of ultracold neutron production in pressurized superfluid helium
• A prestorage method to measure neutron transmission of ultracold neutron guides
• Dynamical theory of diffraction on moving grating
• Spectroscopy of ultracold neutrons using diffraction by a moving grating
• An optical device for ultra-cold neutrons - Investigation of systematic effects and applications
• An ultracold neutron storage bottle for UCN density measurements
• Time-of-flight Fourier UCN spectrometer
• Trap with ultracold neutrons as a detector of dark matter particles with long-range forces
• Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy
• Ultra cold neutron trap as a tool to search for dark matter with long-range radius of forces

Cited by in corpus (25)

• The design of the n2EDM experiment
• First ultracold neutrons produced at TRIUMF
• Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment
• Magnetic field uniformity in neutron electric dipole moment experiments
• The n2EDM experiment at the Paul Scherrer Institute
• Precise Measurements of the Decay of Free Neutrons
• Solid deuterium surface degradation at ultracold neutron sources
• Neutron optics of the PSI ultracold neutron source: characterization and simulation
• The MCUCN simulation code for ultracold neutron physics
• Upgrade of the ultracold neutron source at the pulsed reactor TRIGA Mainz
• Ultracold neutron storage and transport at the PSI UCN source
• A magic magnetic field to measure the neutron electric dipole moment
• $\tau$SPECT: A spin-flip loaded magnetic ultracold neutron trap for a determination of the neutron lifetime
• Helium film may greatly increase the storage time of ultracold neutrons in material traps
• Monte Carlo simulation for Ultra-cold neutron experiments searching for neutron - mirror neutron oscillation
• Measured velocity spectra and neutron densities of the PF2 ultracold-neutron beam ports at the Institut Laue--Langevin
• Johnson-Nyquist Noise Effects in Neutron Electric-Dipole-Moment Experiments
• Scattering of ultracold neutrons from rough surfaces of metal foils
• A new method of creating high intensity neutron source
• Monte Carlo simulations for the optimization and data analysis of experiments with ultracold neutrons
• Ultracold Neutron Storage Simulation Using the Kassiopeia Software Package
• Diffraction of particles in free fall
• On the possibility of creating a UCN source on a periodic pulsed reactor
• Towards TUCAN's Search for the Neutron Electric Dipole Moment
• Happy Birthday, Ultra-Cold Neutron!