[math-ias] Announcement: IAS HET Seminar via Zoom - Monday, May 3, 2021 - 2:30 PM - "Conformal Colliders Meet the LHC" - Ian Moult, Stanford University

[Lisa Fleischer]

*High Energy Theory Seminar -- Monday, May 3, 2021*

"Conformal Colliders Meet the LHC"

Location: via ZOOM -- Time: 2:30 PM

Ian Moult, Stanford University

*To connect to the HET Seminar via Zoom, please click the following link:

*https://theias.zoom.us/j/83432499354?pwd=TkhMZWFJK2E1UzRyeUppU01pZVQwUT09

Abstract: Lightray operators have played an important role in numerous 
recent developments in conformal field theory. These operators, and 
their associated operator product expansion (OPE), also play a central 
role in collider experiments, where they govern the flow of energy at 
small angles.

Taking advantage of recent experimental and theoretical progress in 
understanding the structure of jets at the LHC, a field referred to as 
jet substructure, I will show that one can directly measure the shape 
dependence and scaling properties of multipoint correlators of energy 
flow operators in LHC data. Remarkably, the exceptional quality of the 
data allows basic properties, such as the convexity of the twist-two 
anomalous dimensions governing the OPE, to be immediately seen by eye. 
This rich dataset provides an opportunity for an interesting interplay 
between recent developments in CFT and LHC phenomenology.

In the second part of the talk, I will describe progress in 
understanding the perturbative structure of multipoint correlators of 
energy flow operators, focusing on the case of the three-point 
correlator.  I will show that the three-point correlator takes a 
remarkably simple form in perturbation theory, admitting a 
representation in terms of dual Feynman integrals. This perturbative 
data also provides a playground for understanding the lightray OPE in a 
non-trivial context, leading to the observation of some interesting 
features, such as analyticity in the transverse spin of the lightray 
operators appearing in the OPE. *
*

---------
Lisa Fleischer
School of Natural Sciences
Institute for Advanced Study
1 Einstein Drive
Princeton, NJ 08540
lisa at ias.edu  <mailto:lisa at ias.edu>



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