24–29 Aug 2014
Hamburg University
Europe/Berlin timezone

Pileup subtraction at the particle level

25 Aug 2014, 16:30
25m
Hörsaal K (Main Building)

Hörsaal K

Main Building

Talk 12) New concepts and techniques for accelerators and particle detectors New concepts and techniques for accelerators and particle detectors

Speaker

Dr Spousta Martin (Charles University)

Description

The ability to correct jets and jet shapes for the contributions of multiple uncorrelated proton-proton interactions (pileup) largely determines the ability to identify new physics via highly boosted hadronic decays of W, Z, and Higgs bosons, or top quarks. We present a new method that operates at the level of the jet constituents and provides both a performance improvement and a simplification compared to existing methods. Comparisons of the new method with existing methods along with predictions of the impact of pileup during the LHC run II will be presented. We will also discuss methods that may improve the determination of the missing pt in high pileup environment and a connection between pileup subtraction and the underlying event subtraction in heavy ion collisions.

Primary author

Dr Spousta Martin (Charles University)

Co-author

Peter Berta (Charles University)

Presentation materials