https://lbnl.zoom.us/j/94928022788?pwd=emVQWG1mTnhSbHVqekVuenk0VEVQZz09 Abstract: I will give an overview of the progress made in recent years in the study of CFT data for large charge operators using the semiclassical approximation. The basic result is that, in this regime, the data are universally codified by the dynamics of a superfluid phase for the theory compactified on the cylinder.The advances so far mostly concerned euclidean … Read More

https://lbnl.zoom.us/j/94928022788?pwd=emVQWG1mTnhSbHVqekVuenk0VEVQZz09 Title: The quality/cosmology tension for a post-inflationary QCD axion Abstract: It is difficult to construct a post-inflation QCD axion model that solves the axion quality problem (and hence the Strong CP problem) without introducing a cosmological disaster. In a post-inflation axion model, the axion field value is randomized during the Peccei-Quinn phase transition, and axion domain walls form at … Read More

Title: Matching EFT to LHC Abstract: Experimental constraints on EFT couplings must include a quantitative estimate of the uncertainties due to neglected higher-dimension interactions. This is particularly challenging at the LHC, where the high parton energies and limited precision mean that the searches may be sensitive to energy scales where the EFT breaks down. This talk will describe a search … Read More

Title: Probing new physics with the PIONEER experiment Abstract: PIONEER is a proposed next-generation rare pion decay experiment at PSI. Its main goal in phase 1 is to measure the helicity suppressed pi -> e nu decay with an order of magnitude better precision compared to existing measurements. In phase 2 and 3, the goal is a precision measurement of the … Read More

Title: Dark matter minihalos from Primordial Magnetic fields Abstract: Primordial magnetic fields (PMFs) offer a simple explanation for the origin of galactic magnetic fields as well as of the purportedly detected magnetic fields in cosmic voids.In the talk, I discuss how PMFs’ influence on dark matter perturbations in the early universe can provide a distinctive signal for their presence. I … Read More