The current status of baryogenesis is reviewed, with an emphasis on electroweak
baryogenesis and leptogenesis. The first detailed studies were carried out for SU (5) grand …

Abstract Neutrinos are the Standard Model (SM) particles which we understand the least,
often due to how weakly they interact with the other SM particles. Beyond this, very little is …

The existence of nonzero neutrino masses points to the likely existence of multiple Standard
Model neutral fermions. When such states are heavy enough that they cannot be produced …

We perform a comprehensive study of Milky Way (MW) satellite galaxies to constrain the
fundamental properties of dark matter (DM). This analysis fully incorporates inhomogeneities …

Sterile neutrinos with masses in the keV range are well-motivated extensions to the
Standard Model that could explain the observed neutrino masses while also making up the …

Searches for dark matter decaying into photons constrain its lifetime to be many orders of
magnitude larger than the age of the Universe. A corollary statement is that the abundance …

We present two complementary NuSTAR x-ray searches for keV-scale dark matter decaying
to monoenergetic photons in the Milky Way halo. In the first, we utilize the known intensity …

Neutrinos, being the only fermions in the Standard Model of Particle Physics that do not
possess electromagnetic or color charges, have the unique opportunity to communicate with …

Sub-GeV dark matter particles can annihilate or decay producing e±pairs which upscatter
the low-energy photon fields in the Galaxy and generate an X-ray emission (via the Inverse …

While astrophysical and cosmological probes provide a remarkably precise and consistent
picture of the quantity and general properties of dark matter, its fundamental nature remains …