Pileup Mitigation with Machine Learning (PUMML)

Pileup involves the contamination of the energy distribution arising from the primary collision of interest (leading vertex) by radiation from soft collisions (pileup). We develop a new technique for removing this contamination using machine learning and convolutional neural networks. The network ta...

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Main Authors: Nachman, Benjamin, Schwartz, Matthew D., Komiske, Patrick T., Metodiev, Eric Mario
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:English
Published: Springer Berlin Heidelberg 2018
Online Access:http://hdl.handle.net/1721.1/113351
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author Nachman, Benjamin
Schwartz, Matthew D.
Komiske, Patrick T.
Metodiev, Eric Mario
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Nachman, Benjamin
Schwartz, Matthew D.
Komiske, Patrick T.
Metodiev, Eric Mario
author_sort Nachman, Benjamin
collection MIT
description Pileup involves the contamination of the energy distribution arising from the primary collision of interest (leading vertex) by radiation from soft collisions (pileup). We develop a new technique for removing this contamination using machine learning and convolutional neural networks. The network takes as input the energy distribution of charged leading vertex particles, charged pileup particles, and all neutral particles and outputs the energy distribution of particles coming from leading vertex alone. The PUMML algorithm performs remarkably well at eliminating pileup distortion on a wide range of simple and complex jet observables. We test the robustness of the algorithm in a number of ways and discuss how the network can be trained directly on data. Keywords: Jets.
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spelling mit-1721.1/1133512022-10-02T06:57:47Z Pileup Mitigation with Machine Learning (PUMML) Nachman, Benjamin Schwartz, Matthew D. Komiske, Patrick T. Metodiev, Eric Mario Massachusetts Institute of Technology. Department of Physics Komiske, Patrick T. Metodiev, Eric Mario Pileup involves the contamination of the energy distribution arising from the primary collision of interest (leading vertex) by radiation from soft collisions (pileup). We develop a new technique for removing this contamination using machine learning and convolutional neural networks. The network takes as input the energy distribution of charged leading vertex particles, charged pileup particles, and all neutral particles and outputs the energy distribution of particles coming from leading vertex alone. The PUMML algorithm performs remarkably well at eliminating pileup distortion on a wide range of simple and complex jet observables. We test the robustness of the algorithm in a number of ways and discuss how the network can be trained directly on data. Keywords: Jets. United States. Department of Energy. Office of Science (Contract DE-AC02-05CH11231) United States. Department of Energy. Office of Science (Contract DE-SC0013607) United States. Department of Energy. Office of Nuclear Physics (Contract DE-SC0011090) United States. Department of Energy. Office of High Energy and Nuclear Physics (Contract DE-SC0012567) 2018-01-30T19:05:20Z 2018-01-30T19:05:20Z 2017-12 2017-12-14T06:33:17Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/113351 Komiske, Patrick T., et al. “Pileup Mitigation with Machine Learning (PUMML).” Journal of High Energy Physics, vol. 2017, no. 12, Dec. 2017. en http://dx.doi.org/10.1007/JHEP12(2017)051 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg
spellingShingle Nachman, Benjamin
Schwartz, Matthew D.
Komiske, Patrick T.
Metodiev, Eric Mario
Pileup Mitigation with Machine Learning (PUMML)
title Pileup Mitigation with Machine Learning (PUMML)
title_full Pileup Mitigation with Machine Learning (PUMML)
title_fullStr Pileup Mitigation with Machine Learning (PUMML)
title_full_unstemmed Pileup Mitigation with Machine Learning (PUMML)
title_short Pileup Mitigation with Machine Learning (PUMML)
title_sort pileup mitigation with machine learning pumml
url http://hdl.handle.net/1721.1/113351
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