The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

There is a growing sense of 'crisis' in the dark-matter particle community, which arises from
the absence of evidence for the most popular candidates for dark-matter particles—such as …

High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large
number of particles along the beam collision axis, outside of the acceptance of existing LHC …

The present white paper is submitted as part of the “Snowmass” process to help inform the
long-term plans of the United States Department of Energy and the National Science …

70 AIM, UMR 7158, CEA/DRF, CNRS, Université Paris Diderot, Irfu/Service d'Astrophysique,
Centre de Saclay, FR-91191 Gif-sur-Yvette, France

We present a new catalog of TeV gamma-ray sources using 1523 days of data from the High-
Altitude Water Cherenkov (HAWC) Observatory. The catalog represents the most sensitive …

We review scenarios in which the particles that account for the Dark Matter (DM) in the
Universe interact only through their couplings with the Higgs sector of the theory, the so …

Gamma-ray bursts (GRBs) are brief flashes of γ-rays and are considered to be the most
energetic explosive phenomena in the Universe. The emission from GRBs comprises a short …

Abstract The Large Area Telescope (LAT) aboard the Fermi spacecraft routinely observes
high-energy emission from gamma-ray bursts (GRBs). Here we present the second catalog …

We survey our understanding of classical novae—nonterminal, thermonuclear eruptions on
the surfaces of white dwarfs in binary systems. The recent and unexpected discovery of GeV …