Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

With the establishment and maturation of the experimental programs searching for new
physics with sizeable couplings at the LHC, there is an increasing interest in the broader …

We report the results from a haloscope search for axion dark matter in the 3.3–4.2 μ eV mass
range. This search excludes the axion-photon coupling predicted by one of the benchmark …

This report provides an extensive review of the experimental programme of direct detection
searches of particle dark matter. It focuses mostly on European efforts, both current and …

The manipulation of quantum states of light holds the potential to enhance searches for
fundamental physics. Only recently has the maturation of quantum squeezing technology …

We review the landscape of QCD axion models. Theoretical constructions that extend the
window for the axion mass and couplings beyond conventional regions are highlighted and …

Axions are hypothetical particles that may explain the observed dark matter density and the
non-observation of a neutron electric dipole moment. An increasing number of axion …

The dark photon is a massive hypothetical particle that interacts with the Standard Model by
kinetically mixing with the visible photon. For small values of the mixing parameter, dark …

We give a detailed treatment of electromagnetic signals generated by gravitational waves
(GWs) in resonant cavity experiments. Our investigation corrects and builds upon previous …

The axion has emerged in recent years as a leading particle candidate to provide the
mysterious dark matter in the cosmos, as we review here for a general scientific audience …