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Global EFT fits for the LHC and future colliders

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If you have a question about this talk, please contact Nico Gubernari .

Effective Field Theory (EFT) constitutes a consistent theoretical framework to look for deviations from the Standard Model (SM) in the absence of light new physics. Within the EFT , different sectors become correlated and global interpretations of measurements become necessary. I will present the results of an updated global SMEFT analysis of Higgs, top quark, and diboson production data from the LHC , complemented by electroweak precision observables (EWPOs) from LEP and SLD . I will then discuss the impact of HL-LHC measurements on the SMEFT parameter space, through dedicated projections extrapolating from LHC Run II data. Finally I will explore the significant constraints that measurements from two proposed high-energy circular colliders, the FCC -ee and the CEPC , would impose on both the SMEFT parameter space and on representative UV-complete models.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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