Wing Sheung Chan

104 Signal and background modelling Table 5.2.: Summary of the modelling methods used to model each of the signal and background processes. Process Method Normalisation Corrections Enriched region Z → `τ MC simulations Fit to data p T ( Z ) spectrum SR (high NN out- put) Z → τ τ MC simulations Fit to data p T ( Z ) spectrum CRZ τ τ and SR (low NN output) Z → `` MC simulations Fixed to measurement p T ( Z ) spectrum, ` → τ had - vis mis- identification rate CRZ `` Fakes FF method Fit to data N/A FRs, VRSS and SR (low NN out- put) Others MC simulations Fixed to theory predictions N/A N/A