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SUMMARY:Interpreting LHC data using the Standard Model Effective Field The
 ory - Maeve Madigan (University of Cambridge)
DTSTART:20211123T160000Z
DTEND:20211123T170000Z
UID:TALK162946@talks.cam.ac.uk
CONTACT:Heribertus Bayu Hartanto
DESCRIPTION: 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 S
 MEFT\, combining data from the Higgs\, top\, diboson and electroweak secto
 rs and demonstrating their interplay in constraining the Wilson coefficien
 ts of the SMEFT.  Confidence in our theoretical inputs is crucial in such 
 a global fit.  This is particularly true of the parton distribution functi
 ons (PDFs)\, which are determined from experimental data assuming the vali
 dity of the Standard Model\, often using exactly the same processes that e
 nter 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 Wilso
 n coefficients.
LOCATION:https://cern.zoom.us/j/61144924828?pwd=WDB6QmFCMEZiSEN5Q0k2aklWSj
 k5Zz09
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