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May 23, 2022 to June 3, 2022
Europe/Zurich timezone
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Renormalons from Integrability: A resurgent insight into QFT's conundrum*

May 23, 2022, 2:00 PM
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber


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Tomas Reis (University of Geneva)


Renormalons are non-perturbative effects which are manifested in perturbative series. While they figure in asymptotically free field theories including both QCD and some integrable models, they are in general poorly understood. In this talk I will present results on how to analytically find these non-pertubative effects in the free energy of integrable models. These effects turn out to defy standard expectations which went back to Parisi and ’t Hooft. I will also present a short introduction to the framework of resurgence and to how it is a key tool in the analysis of non-perturbative effects in QFT.

Presentation materials