Nov 14 – 16, 2018
Fermilab
America/Chicago timezone

QCD or What: Deep autoencoder based searches for new physics (20'+5')

Nov 16, 2018, 1:30 PM
25m
One West (WH1W) (Fermilab)

One West (WH1W)

Fermilab

Speaker

Gregor Kasieczka (Hamburg University (DE))

Description

In the current era of high energy particle collider experiments, we are faced with an overwhelming amount of data and the limiting uncertainty in new physics searches can often come from theory and not experiment. In our efforts to develop new approaches to extract complex signals from large backgrounds, BDTs, neural networks and other machine learning techniques are becoming increasingly significant. These tools allow us to find patterns in data that would be impossible to identify with a simple cut-and-count approach. In this work we show how unsupervised learning approaches based on deep autoencoders can be directly trained on data and used for model-independent searches for new physics. Beyond autoencoder we will discuss progress in applying and understanding the four-vector based Lorentz-layer approach to new challenges.

Primary authors

Gregor Kasieczka (Hamburg University (DE)) Tilman Plehn (Heidelberg University) Tilman Plehn Jennifer Thompson (ITP Heidelberg) Jennifer Thompson (ITP Heidelberg)

Presentation materials