I review the current status of phenomenological programs inspired by quantum-spacetime
research. I stress in particular the significance of results establishing that certain data …

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 …

Experiments with cold and ultracold neutrons have reached a level of precision such that
problems far beyond the scale of the present standard model of particle physics become …

This article deals with the interplay between the properties of the neutron and its basic
interactions. Many of the neutron's properties underlie a simple quark model, and we …

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 …

Spectroscopy is a method typically used to assess an unknown quantity of energy by means
of a frequency measurement. In many problems, resonance techniques, enable high …

The existence of a minimum observable length and/or a maximum observable momentum is
in agreement with various candidates of quantum gravity such as string theory, loop …

Among the known particles, the neutron is special because it provides experimental access
to all of the four fundamental forces and a wide range of hypothetical interactions. Despite …

The infinite square well and the attractive Dirac delta function potentials are arguably two of
the most widely used models of one-dimensional bound-state systems in quantum …

Many effective field theories describing gravity cannot arise from an underlying theory based
on Riemann geometry or its extensions to include torsion and nonmetricity but may instead …