Particle-flow reconstruction and global event description with the CMS detector
Main Author: | |
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Publication Date: | 2017 |
Other Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10400.26/27366 |
Summary: | The CMS apparatus was identified, a few years before the start of the LHC operation at CERN, to feature properties well suited to particle-flow (PF) reconstruction: a highly-segmented tracker, a fine-grained electromagnetic calorimeter, a hermetic hadron calorimeter, a strong magnetic field, and an excellent muon spectrometer. A fully-fledged PF reconstruction algorithm tuned to the CMS detector was therefore developed and has been consistently used in physics analyses for the first time at a hadron collider. For each collision, the comprehensive list of final-state particles identified and reconstructed by the algorithm provides a global event description that leads to unprecedented CMS performance for jet and hadronic tau decay reconstruction, missing transverse momentum determination, and electron and muon identification. This approach also allows particles from pileup interactions to be identified and enables efficient pileup mitigation methods. The data collected by CMS at a centre-of-mass energy of 8 TeV show excellent agreement with the simulation and confirm the superior PF performance at least up to an average of 20 pileup interactions. |
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Particle-flow reconstruction and global event description with the CMS detectorThe CMS apparatus was identified, a few years before the start of the LHC operation at CERN, to feature properties well suited to particle-flow (PF) reconstruction: a highly-segmented tracker, a fine-grained electromagnetic calorimeter, a hermetic hadron calorimeter, a strong magnetic field, and an excellent muon spectrometer. A fully-fledged PF reconstruction algorithm tuned to the CMS detector was therefore developed and has been consistently used in physics analyses for the first time at a hadron collider. For each collision, the comprehensive list of final-state particles identified and reconstructed by the algorithm provides a global event description that leads to unprecedented CMS performance for jet and hadronic tau decay reconstruction, missing transverse momentum determination, and electron and muon identification. This approach also allows particles from pileup interactions to be identified and enables efficient pileup mitigation methods. The data collected by CMS at a centre-of-mass energy of 8 TeV show excellent agreement with the simulation and confirm the superior PF performance at least up to an average of 20 pileup interactions.Repositório ComumCMS collaboration (2229 authors)Nayak, ArunaBargassa, PedrameBeirão Da Cruz E Silva, CristóvãoCalpas, BettyDi Francesco, AgostinoFaccioli, PietroGallinaro, MicheleHollar, JonathanLeonardo, NunoLloret Iglesias, LaraSeixas, JoaoToldaiev, OleksiiVadruccio, DanieleVarela, JoaoVischia, PietroDavid Tinoco Mendes, AndreSilva, PedroMusella, PasqualePela, Joao2019-02-04T13:12:10Z2017-10-062019-02-04T13:12:10Z2017-10-06T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.26/27366enghttp://dx.doi.org/10.1088/1748-0221/12/10/P10003info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T06:25:48Zoai:comum.rcaap.pt:10400.26/27366Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:54:02.814774Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Particle-flow reconstruction and global event description with the CMS detector |
title |
Particle-flow reconstruction and global event description with the CMS detector |
spellingShingle |
Particle-flow reconstruction and global event description with the CMS detector CMS collaboration (2229 authors) |
title_short |
Particle-flow reconstruction and global event description with the CMS detector |
title_full |
Particle-flow reconstruction and global event description with the CMS detector |
title_fullStr |
Particle-flow reconstruction and global event description with the CMS detector |
title_full_unstemmed |
Particle-flow reconstruction and global event description with the CMS detector |
title_sort |
Particle-flow reconstruction and global event description with the CMS detector |
author |
CMS collaboration (2229 authors) |
author_facet |
CMS collaboration (2229 authors) Nayak, Aruna Bargassa, Pedrame Beirão Da Cruz E Silva, Cristóvão Calpas, Betty Di Francesco, Agostino Faccioli, Pietro Gallinaro, Michele Hollar, Jonathan Leonardo, Nuno Lloret Iglesias, Lara Seixas, Joao Toldaiev, Oleksii Vadruccio, Daniele Varela, Joao Vischia, Pietro David Tinoco Mendes, Andre Silva, Pedro Musella, Pasquale Pela, Joao |
author_role |
author |
author2 |
Nayak, Aruna Bargassa, Pedrame Beirão Da Cruz E Silva, Cristóvão Calpas, Betty Di Francesco, Agostino Faccioli, Pietro Gallinaro, Michele Hollar, Jonathan Leonardo, Nuno Lloret Iglesias, Lara Seixas, Joao Toldaiev, Oleksii Vadruccio, Daniele Varela, Joao Vischia, Pietro David Tinoco Mendes, Andre Silva, Pedro Musella, Pasquale Pela, Joao |
author2_role |
author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Comum |
dc.contributor.author.fl_str_mv |
CMS collaboration (2229 authors) Nayak, Aruna Bargassa, Pedrame Beirão Da Cruz E Silva, Cristóvão Calpas, Betty Di Francesco, Agostino Faccioli, Pietro Gallinaro, Michele Hollar, Jonathan Leonardo, Nuno Lloret Iglesias, Lara Seixas, Joao Toldaiev, Oleksii Vadruccio, Daniele Varela, Joao Vischia, Pietro David Tinoco Mendes, Andre Silva, Pedro Musella, Pasquale Pela, Joao |
description |
The CMS apparatus was identified, a few years before the start of the LHC operation at CERN, to feature properties well suited to particle-flow (PF) reconstruction: a highly-segmented tracker, a fine-grained electromagnetic calorimeter, a hermetic hadron calorimeter, a strong magnetic field, and an excellent muon spectrometer. A fully-fledged PF reconstruction algorithm tuned to the CMS detector was therefore developed and has been consistently used in physics analyses for the first time at a hadron collider. For each collision, the comprehensive list of final-state particles identified and reconstructed by the algorithm provides a global event description that leads to unprecedented CMS performance for jet and hadronic tau decay reconstruction, missing transverse momentum determination, and electron and muon identification. This approach also allows particles from pileup interactions to be identified and enables efficient pileup mitigation methods. The data collected by CMS at a centre-of-mass energy of 8 TeV show excellent agreement with the simulation and confirm the superior PF performance at least up to an average of 20 pileup interactions. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-06 2017-10-06T00:00:00Z 2019-02-04T13:12:10Z 2019-02-04T13:12:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.26/27366 |
url |
http://hdl.handle.net/10400.26/27366 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://dx.doi.org/10.1088/1748-0221/12/10/P10003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130407540621312 |