24–26 May 2021
University of Pittsburgh
US/Eastern timezone

Artificial Event Variables for Collider Analyses

24 May 2021, 18:30
15m
BSM Tools II

Speaker

Prasanth Shyamsundar (Fermi National Accelerator Laboratory)

Description

In this talk, we will introduce a technique to train neural networks into being good event variables, which are useful to an analysis over a range of values for the unknown parameters of a model.

We will use our technique to learn event variables for several common event topologies studied in colliders. We will demonstrate that the networks trained using our technique can mimic powerful, previously known event variables like invariant mass, transverse mass, and MT2.

We will describe how the machine learned event variables can go beyond the hand-derived event variables in terms of sensitivity, while retaining several attractive properties of event variables, including the robustness they offer against unknown modeling errors.

Primary authors

Doojin Kim (Texas A & M University (US)) K.C. Kong (University of Kansas) Konstantin Matchev (University of Florida (US)) Myeonghun Park (University of Seoul, Department of Physics (KR)) Prasanth Shyamsundar (Fermi National Accelerator Laboratory)

Presentation materials