Oct 19 – 21, 2020
Europe/Zurich timezone

Using sWeights to disentangle signal and background

Oct 21, 2020, 2:00 PM


Michael Schmelling (Max-Planck-Gesellschaft (DE))


When an observable density is a superposition of signal and background PDFs that each factorise in a ''discriminant'' and a ''control'' variable, sWeights allow one to determine the signal density in the control variable using information from only the discriminant variable.
After reviewing the basics of the method and casting the formalism into the framework of orthogonal functions, the talk will address numerical aspects of the method and how to deal with weighted events or factorisation breaking.

Presentation materials