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New ALP probes from light meson decays
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons and pions benefit from their small total...
Nov 15, 2022
The Future of Numerical Relativity: Gravitational Memory, BMS Frames, and More
As was realized by Bondi, Metzner, van der Burg, and Sachs (BMS), the symmetry group of asymptotic infinity is not the Poincaré group, but an infinite-dimensional group called the BMS...
Nov 17, 2022
On the fate of the LR instability
Abstract and Zoom Link: https://pitp.zoom.us/j/91762985902?pwd=djhwYVdsQ25GVVBRVTlwSkQvaDJ4Zz09
Oct 18, 2022
Cosmological Signatures of Interacting Dark Sectors
Models of dark sectors with a mass threshold can have important cosmological signatures. If, in the era prior to recombination, a relativistic species becomes non-relativistic and is then depopulated in...
Oct 25, 2022
BBN circa 2022: New Physics hints from the Early Universe?
Bang Nucleosynthesis (BBN) is one of the greatest outcome of the Standard Model of Particle Physics when put next to ΛCDM cosmology. In this talk, I will first review the...
Oct 28, 2022
: From black holes to the Big Bang: astrophysics and cosmology with gravitational waves and their electromagnetic counterparts
The growing catalog of gravitational-wave signals from compact object mergers has allowed us to study the properties of black holes and neutron stars more precisely than ever before and has...
Oct 27, 2022
Direct Deflection of Particle Dark Matter
Detecting light dark matter that interacts weakly with electromagnetism has recently become one of the benchmark goals of near-term and futuristic direct detection experiments. In this talk, I will discuss...
Oct 15, 2019
Perspectives on Matter Effects in GW170817
The detection of coalescing neutron stars via gravitational waves (GW170817) has revolutionized our understanding of the equation of state at supranuclear densities. The equation of state determines how neutron stars...
Oct 17, 2019
Searches for other vacua II: A new Higgstory at the cosmological collider
Searches for other vacua II: A new Higgstory at the cosmological collider
Oct 18, 2019
Real-time dynamics of plasma balls in a confining background
Black holes in the background of the AdS soliton are, according to the gauge/gravity correspondence, dual to droplets of deconfined plasma surrounded by a confining vacuum. In this talk I...
Oct 31, 2019