High Energy Theory Seminar: Cornering axion(s) with direct detection and stellar probes
Edoardo Vitagliano (Hebrew U.)
Feebly interacting particles (FIPs), such as axions, scalars, dark photons, and majorons, are often theoretically well motivated, and a dark sector including one or more of them can both have the…
High Energy Theory Seminar: Coherence in the sky: from precision astrometry to black holes and hidden particles
Masha Baryakhtar (U. Wash)
In the era of a wealth of data from the sky, new perspectives can lead to parametric improvements in discovery reach. I will discuss two ideas that make use of surprising properties of coherent radiation to…
Condensed and Living Matter Seminar: Topological Defects in Computational Meshing
David Palmer (Harvard University)
The topological structure of a hexahedral mesh is characterized by its singularities, which look like line disclinations in a crystal. In field-based meshing, one first computes a so-called octahedral…
Experimental Particle Physics Seminar: Muon trigger system and search for supersymmetry
Kaito Sugizaki (University of Tokyo)
The ATLAS experiment, consisting of over 3,000 members, explores new frontiers in physics with high-energy proton-proton collisions at the LHC. In such a large collaboration, it is crucial to devote oneself to…
Astrophysics Seminar: Constraining Galaxy Formation And Baryonic Effects On LSS With Observations Of The Thermal And Kinetic SZ Effects
Nick Battaglia (Cornell University)
A new window into the growth and evolution of large-scale structure has opened up with the recent observations of the thermal and kinetic Sunyaev-Zel’dovich (SZ) effects. I will present ongoing work to…
High Energy Theory Seminar: de Sitter as an Axion Detector
John Stout (Harvard)
Axions, scalar fields with compact field spaces, are some of the most well-motivated candidates for physics beyond the Standard Model. In this talk, I will explain how inflationary correlations are uniquely sensitive…
High Energy Theory Seminar: Squaring Charges and finding Black Holes
Mariana Carrillo Gonzalez (Imperial)
Nowadays, we have an outstanding grasp of gauge theories on both experimental and theoretical fronts. Meanwhile, our understanding of gravitational physics has advanced greatly, but many…
Astrophysics Seminar: ML x Cosmology with 50 Million Galaxies
ChangHoon Hahn (Princeton University)
The 3D spatial distribution of galaxies encodes key cosmological information that can be used to probe the nature of dark energy and measure the sum of neutrino masses. The next generation of galaxy…
Condensed and Living Matter Seminar: Magnetic imaging of domain walls and surface transition in antiferromagnetic topological insulators
Weida Wu (Rutgers University)
Layered antiferromagnets with topological band structure are promising platforms to host many interesting topological phenomena. Thus, it is imperative to visualize domains or…