SoftKiller, a particle-level pileup removal method

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Existing widely used pileup removal approaches correct the momenta of individual jets. In this article we introduce an event-level, particle-based pileup correction procedure, SoftKiller. It removes the softest particles in an event, up to a transverse momentum threshold that is determined dynamical...

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Detalles Bibliográficos
Autores principales: Cacciari, Matteo, Salam, Gavin P., Soyez, Gregory
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2015
Materias:
Regular Article - Theoretical Physics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376401/
https://www.ncbi.nlm.nih.gov/pubmed/25838789
http://dx.doi.org/10.1140/epjc/s10052-015-3267-2
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author Cacciari, Matteo
Salam, Gavin P.
Soyez, Gregory
author_facet Cacciari, Matteo
Salam, Gavin P.
Soyez, Gregory
author_sort Cacciari, Matteo
collection PubMed
description Existing widely used pileup removal approaches correct the momenta of individual jets. In this article we introduce an event-level, particle-based pileup correction procedure, SoftKiller. It removes the softest particles in an event, up to a transverse momentum threshold that is determined dynamically on an event-by-event basis. In simulations, this simple procedure appears to be reasonably robust and brings superior jet resolution performance compared to existing jet-based approaches. It is also nearly two orders of magnitude faster than methods based on jet areas.
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spelling pubmed-43764012015-03-31 SoftKiller, a particle-level pileup removal method Cacciari, Matteo Salam, Gavin P. Soyez, Gregory Eur Phys J C Part Fields Regular Article - Theoretical Physics Existing widely used pileup removal approaches correct the momenta of individual jets. In this article we introduce an event-level, particle-based pileup correction procedure, SoftKiller. It removes the softest particles in an event, up to a transverse momentum threshold that is determined dynamically on an event-by-event basis. In simulations, this simple procedure appears to be reasonably robust and brings superior jet resolution performance compared to existing jet-based approaches. It is also nearly two orders of magnitude faster than methods based on jet areas. Springer Berlin Heidelberg 2015-02-06 2015 /pmc/articles/PMC4376401/ /pubmed/25838789 http://dx.doi.org/10.1140/epjc/s10052-015-3267-2 Text en © The Author(s) 2015 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0.
spellingShingle Regular Article - Theoretical Physics
Cacciari, Matteo
Salam, Gavin P.
Soyez, Gregory
SoftKiller, a particle-level pileup removal method
title SoftKiller, a particle-level pileup removal method
title_full SoftKiller, a particle-level pileup removal method
title_fullStr SoftKiller, a particle-level pileup removal method
title_full_unstemmed SoftKiller, a particle-level pileup removal method
title_short SoftKiller, a particle-level pileup removal method
title_sort softkiller, a particle-level pileup removal method
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376401/
https://www.ncbi.nlm.nih.gov/pubmed/25838789
http://dx.doi.org/10.1140/epjc/s10052-015-3267-2
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