My abstract is: Two-dimensional CFT correlators develop `forbidden singularities’ at large central charge c. These singularities signify information loss from black hole physics in AdS, arising as a consequence of Euclidean-time periodicity from the effective Hawking temperature. We study an infinite class of examples where these singularities can be resolved by non-perturbative effects at finite c, and we show that … Read More
Abstract: Theories of neutral naturalness can realize untuned solutions to the hierarchy problem while avoiding LHC current exclusion bounds on colored top partners. Their unusual signatures demonstrate the range of phenomena that can connected to stabilizing the electroweak scale, motivating searches for displaced vertices, exotic Higgs decays and emerging jets. I will give an overview of how to constrain these … Read More
The fact that the standard model gauge couplings approximately unify at high energies has motivated work on many models involving larger gauge groups. Assuming that unification occurs perturbatively, there is a restricted set of new fields that can be added without disrupting this behavior. In this talk, I will use this set of possibilities to motivate interesting signals of new … Read More
Abstract: Understanding the microscopic nature of dark matter (DM) is one of the most outstanding problems facing modern physics. There is to-date no evidence for non-gravitational interactions of DM with the rest of the Standard Model and also no hint for any particular DM mass. My talk with focus on new techniques to search for GeV-TeV scale weakly-interacting DM by … Read More
ABSTRACT: Searches for the permanent Electric Dipole Moments (EDMs) of the neutron, neutral atoms, and molecules provide deep probes of the breaking of CP symmetry in extensions of the Standard Model. After briefly reviewing theoretical challenges and recent progress in hadronic matrix elements needed to connect EDMs to new sources of CP violation, I will illustrate the constraining power of … Read More
Abstract: We have great certainty on how gravity works around our solar system: General Relativity (GR) has been found to be very accurate at these small scales. On large scales though, we still have a considerable lack of understanding about the evolution of the universe, and its constituents. While the LCDM model is in good agreement with cosmological data, this … Read More