University of Cambridge > Talks.cam > Cavendish HEP Seminars > Interpreting LHC data using the Standard Model Effective Field Theory

Interpreting LHC data using the Standard Model Effective Field Theory

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The Standard Model Effective Field Theory (SMEFT) provides a powerful framework for capturing the indirect effects of heavy new physics on observables measured at the LHC . I will present a global fit to the SMEFT , combining data from the Higgs, top, diboson and electroweak sectors and demonstrating their interplay in constraining the Wilson coefficients of the SMEFT . Confidence in our theoretical inputs is crucial in such a global fit. This is particularly true of the parton distribution functions (PDFs), which are determined from experimental data assuming the validity of the Standard Model, often using exactly the same processes that enter SMEFT analyses. I will present a study of the interplay of PDFs and the SMEFT in the high-mass tails of Drell-Yan distributions, quantifying the impact of a consistent joint determination of the PDFs and SMEFT Wilson coefficients.

This talk is part of the Cavendish HEP Seminars series.

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