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QMAP Particles/Cosmology Seminar:Quentin Bonnefoy

Description Speaker: Quentin Bonnefoy
Title: Positivity bounds on nonlinear supersymmetry
Room: 3024
Host: Da Liu
Abstract:
Effective theories of spontaneously broken supersymmetry (SUSY) couple Goldstinos and matter fields. A convenient formalism, that of constrained superfields, recycles the techniques used to build theories with unbroken SUSY. However, the associated constraints are not unique. Using positivity bounds, I will argue that the use of some of those constraints is forbidden by the requirement that there should exist a UV completion. I will also illustrate how this is captured by explicit matching computations. These results resonate with causality issues caused by gravitinos during inflation.
Date Mon, March 6, 2023
Time 1:30pm-3:00pm PST
Duration 1 hour 30 minutes
Access Public
Created by High-Energy Seminars
Updated Thu, March 2, 2023 11:40am PST
Send Reminder Yes  -  3 days 5 hour 0 minutes before start

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