HET and HEE Seminars

Upcoming HET and HEE Seminars

High Energy Experiment Seminar: Off the Beaten Track: Long-Lived Particles at the LHC

Tova Holmes (University of Tennessee)

The LHC has reached a new era: nearly a decade without any large jumps in energy or luminosity. For those interested in finding Beyond the Standard Model (BSM) physics, a paradigm shift is required. In my…

Past HET and HEE Seminars

High Energy Theory Seminar: Closed strings and weak gravity condition from higher-spin causality

Sandipan Kundu (Johns Hopkins University)

I will show that metastable higher spin particles, free or interacting, cannot couple to gravity while preserving causality unless there exist higher spin states in the gravitational…

High Energy Theory Seminar: Entropy and symmetry in QFT

Javier Magán (University of Pennsylvania)

We describe a novel approach to gauge and generalized symmetries in QFT. It starts with the analysis of fundamental properties (additivity and Haag duality) that appear in the '…

High Energy Theory Seminar: Soft de Sitter Effective Theory

Daniel Green (University of California, San Diego)

Understanding the quantum evolution of a de Sitter universe on superhorizon scales is notoriously difficult.  To address this challenge, we introduce the Soft de Sitter Effective…

High Energy Theory Seminar: Chiral matter in 4D Standard Model-like F-theory constructions

Andrew Turner (University of Pennsylvania)

In this talk, I discuss a general class of Standard Model-like constructions in F-theory. I begin by introducing a definition of "generic" matter in supergravity and F-theory, and the associated notion of…