Speaker
William Shepherd
Description
I present a novel technique for estimation of uncertainties arising from truncation of the EFT expansion perturbation series which exploits the calculability of partial next-order effects while removing degeneracies in effects of different operator combinations to provide a minimal (observable-dependent) set of nuisance parameters. This gives a manageable number of nuisances to be included in producing a conservative constraint on SMEFT parameters, which has been cross-checked against full next-order calculations in example processes and shown to contain the relevant effects. The procedure is process-independent and straightforward to apply.
Author
William Shepherd