Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will
be the world's brightest neutron source. As such, it has the potential for a particle physics …

We report on precision resonance spectroscopy measurements of quantum states of
ultracold neutrons confined above the surface of a horizontal mirror by the gravity potential …

There is a deep connection between cosmology—the science of the infinitely large—and
particle physics—the science of the infinitely small. This connection is particularly manifest in …

We consider theoretical motivations to search for extra short-range fundamental forces as
well as experiments constraining their parameters. The forces could be of two types: 1) spin …

For more than a decade, detonation nanodiamond (DND) powders have been actively
studied as a material for efficient reflectors of very cold neutrons (VCNs) and cold neutrons …

Among a number of methods employed to characterize various types of magnetic nano-
structures Polarized Neutron Reflectometry (PNR) is shown to be a unique tool providing a …

This paper summarizes the results from measurements aiming to characterize ultracold
neutron detection with 6 Li-doped glass scintillators. Single GS10 or GS20 scintillators, with …

A new neutron-cooling mechanism is proposed with potential benefits for novel intense
sources of very cold neutrons with wavelengths> 2 nm, and for enhancing the production of …

The existence of quantum states of matter in a gravitational field was demonstrated recently
in the Institut Laue–Langevin (ILL), Grenoble, in a series of experiments with ultra cold …

Hypothetical short-range interactions could be detected by measuring the wavefunctions of
gravitationally bound ultracold neutrons (UCNs) on a mirror in the Earth's gravitational field …