[math-ias] Announcement: IAS Physics Group Meeting - Wednesday, October 4 - 2:30 PM - Wolfensohn Hall Hall - "Exploring the Infrared Structure of Massless Gauge Theories" - Lorenzo Magnea, Torino University

[Lisa Fleischer]

Wednesday, October 4, 2023 - IAS Physics Group Meeting 

"Exploring the Infrared Structure of Massless Gauge Theories" 

Location: Wolfensohn Hall (NOTE LOCATION CHANGE) 

Time: 2:30 PM (NOTE TIME CHANGE) 

Speaker: Lorenzo Magnea, Torino University 

Abstract: I will briefly review the factorisation of soft and collinear singularities in massless gauge theory amplitudes, and the structure of the soft anomalous dimension matrix. I will then discuss the implications of this factorisation for the problem of infrared subtraction at high orders, which is a very active area of research for precision phenomenology at colliders. Finally, I will present a recent theoretical development, showing that the infrared factor for a generic massless gauge theory amplitude, in the dipole approximation, but to all orders in perturbation theory, is given by a correlator of colorful vertex operators in a conformal field theory on the celestial sphere. 




To view the calendar online, go to: 

[ https://www.ias.edu/sns/events/physics | https://www.ias.edu/sns/events/physics ] 
---------------------
Lisa Fleischer
Academic Assistant
School of Natural Sciences
Institute for Advanced Study
1 Einstein Drive
Princeton, NJ 08540 [ mailto:lisa at ias.edu | lisa at ias.edu ] 





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