Format results
-
Anisotropic gravitational wave backgrounds from rotating axions
Arushi Bodas - University of Chicago
-
-
-
Primordial black holes in the era of Roman
William DeRocco - University of Maryland, College Park
-
The Bearable Inhomogeneity of the Baryon Asymmetry
Hengameh Bagherian - University of Chicago - Enrico Fermi Institute
-
-
Dyon Loops, Axions, and Symmetries in Between
Marius Kongsore - New York University (NYU)
-
Improving prospects for the direct detection of Higgsino dark matter
Harikrishnan Ramani - University of Delaware
-
Crunchy critical natural Higgs
Ameen Ismail - University of Chicago - Enrico Fermi Institute
-
A Quantum Description of Wave Dark Matter
Nicholas Rodd - Lawrence Berkeley National Laboratory
-
The Non-linear Early Universe
Dani Figueroa - Instituto de Fisica Corpuscular (IFIC)
-
Flavorful Probes of New Physics
Katherine Fraser - University of California, Berkeley
-
Anisotropic gravitational wave backgrounds from rotating axions
Arushi Bodas - University of Chicago
Gravitational waves (GW) offer a unique window into primordial density perturbations that may differ significantly from the adiabatic fluctuations observed in the CMB and large-scale structure. This raises an exciting prospect of seeing fluctuations of a completely new field from inflation in the… -
Light Magnetic Dipole-Coupled Dark Matter
The past decade has seen rapid advancement in electron excitation-based direct detection experiments, which target light, MeV-GeV mass dark matter. Recently, the DAMIC-M collaboration began to probe the benchmark light dark matter models, renewing questions about the broader range of dark matter… -
What is the QCD axion mass?
The QCD axion may solve the strong CP problem and constitute the dark matter (DM) abundance in our Universe. Peccei-Quinn (PQ) axions may form axion strings if the PQ phase transition occurs after inflation. I will discuss recent advances in the computation of the QCD axion DM mass in this scenario… -
Primordial black holes in the era of Roman
William DeRocco - University of Maryland, College Park
Primordial black holes (PBHs) are a well-motivated candidate for dark matter that may constitute a sub-fraction of the dark sector in the Earth-mass range. The strongest observational probe of this population is through gravitational microlensing, an effect in which the bending of light by a massive… -
The Bearable Inhomogeneity of the Baryon Asymmetry
Hengameh Bagherian - University of Chicago - Enrico Fermi Institute
We study the implications of precision measurements of light-element abundances, in combination with the Cosmic Microwave Background, for scenarios of physics beyond the Standard Model that generate large inhomogeneities in the baryon-to-photon ratio. We show that precision Big Bang Nucleosynthesis… -
The Quality/Cosmology Tension for a Post-Inflation QCD Axion
The QCD axion is not only a leading contender as a solution to the Strong CP problem, it is also a natural dark matter candidate. In particular, the post-inflationary axion is particularly attractive because of the possibility of a unique prediction of the axion mass if axion makes up all of dark… -
-
Improving prospects for the direct detection of Higgsino dark matter
Harikrishnan Ramani - University of Delaware
The pseudo-Dirac Higgsino is one of the last surviving electroweak WIMPs. The LHC will not reach the 1.1 TeV target mass even with full luminosity and prospects for its indirect detection depend on a favorable dark matter density profile at the galactic center. Since it has only off-diagonal… -
Crunchy critical natural Higgs
Ameen Ismail - University of Chicago - Enrico Fermi Institute
I describe a new solution to the Higgs hierarchy problem based on a dynamical vacuum selection mechanism in a landscape which scans the Higgs mass. The Higgs potential only admits a stable minimum when its mass is less than a critical value, cosmologically crunching away patches with a heavier Higgs… -
A Quantum Description of Wave Dark Matter
Nicholas Rodd - Lawrence Berkeley National Laboratory
In this talk I will outline a fundamentally quantum description of bosonic dark matter from which the conventional classical-wave picture emerges when the mass is far below 10 eV. Exploiting fundamental results from quantum optics I will argue that the density matrix for dark matter is explicitly… -
The Non-linear Early Universe
Dani Figueroa - Instituto de Fisica Corpuscular (IFIC)
We introduce 'Lattice Cosmology’ as an emergent field encompassing a set of techniques capable of solving the non-linear dynamics of interactive fields in an expanding Universe. As a demonstration of the power of these techniques, we solve two very different problems of early Universe cosmology: i)… -
Flavorful Probes of New Physics
Katherine Fraser - University of California, Berkeley
Measurements of the flavor structure of the Standard Model can be precise probes of physics beyond it. In this talk, we describe two implications of various flavor physics measurements. First, we discuss the use of Froggatt-Nielsen (FN) models for explaining the Standard Model flavor hierarchy. We…