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 …

Axions and other very light axion-like particles appear in many extensions of the Standard
Model, and are leading candidates to compose part or all of the missing matter of the …

The highest-energy gamma-rays from gamma-ray bursts (GRBs) have important implications
for their radiation mechanism. Here we report the detection of gamma-rays up to 13 …

Polarization measurements of thermal radiation from magnetic white dwarf (MWD) stars
have been proposed as a probe of axion-photon mixing. The radiation leaving the surface of …

Names: CTA Consortium (Organization) Title: Science with the Cherenkov Telescope
Array/by The CTA Consortium. Description: New Jersey: World Scientific, 2018.| Includes …

Axions can be copiously produced in localized regions of neutron star magnetospheres
where the ambient plasma is unable to efficiently screen the induced electric field. As these …

We revise the bound from the supernova SN1987A on the coupling of ultralight axion-like
particles (ALPs) to photons. In a core-collapse supernova, ALPs would be emitted via the …

A bstract We explore whether the axion which solves the strong CP problem can naturally be
much lighter than the canonical QCD axion. The\({Z} _ {\mathcal {N}}\) symmetry proposed …

Very recently Pulsar Timing Array (PTA) collaborations have independently reported the
evidence for a stochastic gravitational-wave background (SGWB), which can unveil the …

We report on the search for spectral irregularities induced by oscillations between photons
and axionlike-particles (ALPs) in the γ-ray spectrum of NGC 1275, the central galaxy of the …