Orateur
Ben Assi
(University of Cincinnati)
Description
We begin by reviewing how NLL accuracy is achieved in modern parton showers, highlighting the recent Sherpa implementation, and then introduce our new information-theoretic matching framework to achieve beyond NLL accuracy. By minimizing a Kullback–Leibler functional under constraints set by precision QCD input observables (including theory uncertainties), we embed high-order predictions into fully differential, particle-level simulations with strictly positive event weights and the ability to impose multiple observable constraints simultaneously. We futher discuss HDSense a new efficient tool that approximates the full Fisher information matrix for observable selection to maximize sensitivity to underlying QCD parameters.
Auteur
Ben Assi
(University of Cincinnati)