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SUMMARY:Building blocks of the flavourful SMEFT RG - Sophie Renner (CERN)
DTSTART:20220520T150000Z
DTEND:20220520T160000Z
UID:TALK173759@talks.cam.ac.uk
CONTACT:Maeve Madigan
DESCRIPTION:An effective field theory's power lies in the possibility of c
 onnecting scales through renormalisation group flow\, encapsulated in the 
 anomalous dimensions of the operators. The anomalous dimension matrix of t
 he SMEFT encodes clues towards where to find relics of heavy new physics i
 n data\, but its unwieldy 2499x2499 size (at operator dimension six) makes
  it difficult to draw general conclusions. In this talk\, I will review re
 cent progress on understanding the structure of the matrix using on-shell 
 methods. Pairing this with a flavour decomposition of the Wilson coefficie
 nt matrices\, I will show that small subsystems emerge which mix almost ex
 clusively amongst themselves. This deconstruction of the RGEs provides a f
 irst step to understanding the IR-attractive directions in the SMEFT param
 eter space\, hence closing in on natural places for heavy new physics to m
 ake itself known.
LOCATION:Potter Room (B1.19)
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