31 citations · 42 across the 14 of their papers we have counts for
15 papers
Probing the Fundamental Nature of Particle Dark Matter
Marco Regis, Aritra Basu, Geoff Beck +7
Understanding the fundamental nature of dark matter (DM) is one of the most significant scientific challenges of our time. A compelling hypothesis is that DM consists of a new, yet…
NuSTAR as an Axion Helioscope: probing axion-nucleon and axion-electron couplings
Tiziano Zanzarella, Francisco R. Candón, Maurizio Giannotti +5
We investigate solar X-ray observations as a probe of axions and axion-like particles. These particles can be produced in the interior of the Sun via the conversion of thermal phot…
The COSMIC WISPers White Paper: The physics case for Weakly Interacting Slim Particles
Ariel Arza, Deniz Aybas, Shyam Balaji +124
Axions and other very weakly interacting slim particles (WISPs), with masses below 1 GeV, arise naturally in many extensions of the Standard Model of particle physics. In particula…
New bounds on Axion-Like Particles in the Ultraviolet from Legacy Data
Elisa Todarello
We use legacy data from the Hubble Space Telescope (HST) and the International Ultraviolet Explorer (IUE) to search for a spectral line from the spontaneous decay of axion-like par…
Exploring the Dark Universe: A European Strategy for Axions and other WISPs Discovery
Deniz Aybas, Francesca Calore, Michele Cicoli +17
Axions and other very weakly interacting slim (with 1 GeV) particles (WISPs) are a common feature of several extensions of the Standard Model of Particle Physics. The search…
Axion-like Particle Conversion in the Solar Magnetic Field
Elisa Todarello
Axion-like particles (ALPs), hypothetical extensions of the Standard Model, can convert into photons in an external magnetic field. Two recent studies~\cite{Todarello:2023ptf, Ruz:…
Bounds on Axions-Like Particles Shining in the Ultra-Violet
Elisa Todarello, Marco Regis
Axion-like particles (ALPs) can decay into two photons with a rest-frame frequency given by half of the ALP mass. This implies that ultra-violet searches can be used to investigate…
NuSTAR as an Axion Helioscope
J. Ruz, E. Todarello, J. K. Vogel +11
We present a novel approach to investigating axions and axion-like particles (ALPs) by studying their potential conversion into X-rays within the Sun's atmospheric magnetic field.…
The Sun as a target for axion dark matter detection
Elisa Todarello, Marco Regis, Marco Taoso +3
The exploration of the parameter space of axion and axion-like particle dark matter is a major aim of the future program of astroparticle physics investigations. In this context, w…
Constraints on the origin of the radio synchrotron background via angular correlations
Elisa Todarello, Marco Regis, Federico Bianchini +7
The origin of the radio synchrotron background (RSB) is currently unknown. Its understanding might have profound implications in fundamental physics or might reveal a new class of…
Anatomy of astrophysical echoes from axion dark matter
Elisa Todarello, Francesca Calore, Marco Regis
If the dark matter in the Universe is made of eV axion-like particles (ALPs), then a rich phenomenology can emerge in connection to their stimulated decay into two photons. We d…
Updated bounds on Axion-Like Particle Dark Matter with the optical MUSE-Faint survey
Elisa Todarello
Bounds are derived on the axion-like particle (ALP) to two-photon coupling in the mass range eV. The bounds are obtained by searching for the signal from ALP decay in t…
Robust bounds on ALP dark matter from dwarf spheroidal galaxies in the optical MUSE-Faint survey
Elisa Todarello, Marco Regis, Javier Reynoso-Cordova +5
Nearby dwarf spheroidal galaxies are ideal targets in the search for indirect dark matter (DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five…
Constraining Below-threshold Radio Source Counts With Machine Learning
Elisa Todarello, Andre Scaffidi, Marco Regis +1
We propose a machine-learning-based technique to determine the number density of radio sources as a function of their flux density, for use in next-generation radio surveys. The me…
The Second Radio Synchrotron Background Workshop: Conference Summary and Report
J. Singal, N. Fornengo, M. Regis +24
We summarize the second radio synchrotron background workshop, which took place June 15-17, 2022 in Barolo, Italy. This meeting was convened because available measurements of the d…