Mathematical Physics and String Theory
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(15.04.) Spinning into the EFThedron

Yu-Tin Huang (Taiwan U)

15.04.2021 at 16:15

Recently, a geometric formulation of the theory space of effective field theories has been proposed in the frame work of positive geometries. The geometry arrises as a consequence of unitarity in the UV. In this talk, we will clarify this geometry as various projections of the product moment curves, and describe how the Wilson coefficients for the EFT are bounded by the boundaries of this geometry. Furthermore, we will derive upper bounds on the ratio of spinning spectral functions, demonstrating the phenomenon of large spin suppressions found in known EFTs with healthy UV completions.

Arnold Sommerfeld Center
Theresienstrasse 37
Room 348
via ZOOM