A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV
Many measurements at the LHC require efficient identification of heavy-flavour jets, i.e. jets originating from bottom (b) or charm (c) quarks. An overview of the algorithms used to identify c jets is described and a novel method to calibrate them is presented. This new method adjusts the entire dis...
| Autores: | , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad de Cantabria (UC) |
| Repositorio: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unican.es:10902/28626 |
| Acceso en línea: | https://hdl.handle.net/10902/28626 |
| Access Level: | acceso abierto |
| Palabra clave: | Large detector-systems performance Pattern recognition Cluster finding Calibration and fitting methods |
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oai:repositorio.unican.es:10902/28626 |
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A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeVTumasyan, A.Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856 Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022Calderón Tazón, Alicia|||0000-0002-7205-2040Duarte Campderros, Jorge|||0000-0003-0687-5214Fernández García, Marcos|||0000-0002-4824-1087Fernández Madrazo, Celia|||0000-0001-9748-4336Fernández Manteca, Pedro José|||0000-0003-2566-7496García Alonso, AndreaGómez Gramuglio, Gervasio|||0000-0002-1077-6553Martínez Rivero, CelsoMartínez Ruiz del Árbol, Pablo|||0000-0002-7737-5121Matorras Weinig, Francisco|||0000-0003-4295-5668Matorras Cuevas, Pablo|||0000-0001-7481-7273Piedra Gómez, Jonatan|||0000-0002-9157-1700Prieëls, CedricRodrigo Anoro, TeresaRuiz Jimeno, Alberto|||0000-0002-3639-0368Scodellaro, Luca|||0000-0002-4974-8330Vila Álvarez, Iván|||0000-0002-6797-7209Vizán García, Jesús Manuel|||0000-0002-6823-8854Large detector-systems performancePattern recognitionCluster findingCalibration and fitting methodsMany measurements at the LHC require efficient identification of heavy-flavour jets, i.e. jets originating from bottom (b) or charm (c) quarks. An overview of the algorithms used to identify c jets is described and a novel method to calibrate them is presented. This new method adjusts the entire distributions of the outputs obtained when the algorithms are applied to jets of different flavours. It is based on an iterative approach exploiting three distinct control regions that are enriched with either b jets, c jets, or light-flavour and gluon jets. Results are presented in the form of correction factors evaluated using proton-proton collision data with an integrated luminosity of 41.5 fb-1 at ?s = 13 TeV, collected by the CMS experiment in 2017. The closure of the method is tested by applying the measured correction factors on simulated data sets and checking the agreement between the adjusted simulation and collision data. Furthermore, a validation is performed by testing the method on pseudodata, which emulate various mismodelling conditions. The calibrated results enable the use of the full distributions of heavy-flavour identification algorithm outputs, e.g. as inputs to machine-learning models. Thus, they are expected to increase the sensitivity of future physics analyses.Universidad de Cantabria20222022-01-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/28626Journal of Instrumentation, 2022, 17, P03014reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/286262026-06-02T12:39:31Z |
| dc.title.none.fl_str_mv |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| title |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| spellingShingle |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV Tumasyan, A. Large detector-systems performance Pattern recognition Cluster finding Calibration and fitting methods |
| title_short |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| title_full |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| title_fullStr |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| title_full_unstemmed |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| title_sort |
A new calibration method for charm jet identification validated with proton-proton collision events at vs = 13TeV |
| dc.creator.none.fl_str_mv |
Tumasyan, A. Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856 Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022 Calderón Tazón, Alicia|||0000-0002-7205-2040 Duarte Campderros, Jorge|||0000-0003-0687-5214 Fernández García, Marcos|||0000-0002-4824-1087 Fernández Madrazo, Celia|||0000-0001-9748-4336 Fernández Manteca, Pedro José|||0000-0003-2566-7496 García Alonso, Andrea Gómez Gramuglio, Gervasio|||0000-0002-1077-6553 Martínez Rivero, Celso Martínez Ruiz del Árbol, Pablo|||0000-0002-7737-5121 Matorras Weinig, Francisco|||0000-0003-4295-5668 Matorras Cuevas, Pablo|||0000-0001-7481-7273 Piedra Gómez, Jonatan|||0000-0002-9157-1700 Prieëls, Cedric Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto|||0000-0002-3639-0368 Scodellaro, Luca|||0000-0002-4974-8330 Vila Álvarez, Iván|||0000-0002-6797-7209 Vizán García, Jesús Manuel|||0000-0002-6823-8854 |
| author |
Tumasyan, A. |
| author_facet |
Tumasyan, A. Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856 Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022 Calderón Tazón, Alicia|||0000-0002-7205-2040 Duarte Campderros, Jorge|||0000-0003-0687-5214 Fernández García, Marcos|||0000-0002-4824-1087 Fernández Madrazo, Celia|||0000-0001-9748-4336 Fernández Manteca, Pedro José|||0000-0003-2566-7496 García Alonso, Andrea Gómez Gramuglio, Gervasio|||0000-0002-1077-6553 Martínez Rivero, Celso Martínez Ruiz del Árbol, Pablo|||0000-0002-7737-5121 Matorras Weinig, Francisco|||0000-0003-4295-5668 Matorras Cuevas, Pablo|||0000-0001-7481-7273 Piedra Gómez, Jonatan|||0000-0002-9157-1700 Prieëls, Cedric Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto|||0000-0002-3639-0368 Scodellaro, Luca|||0000-0002-4974-8330 Vila Álvarez, Iván|||0000-0002-6797-7209 Vizán García, Jesús Manuel|||0000-0002-6823-8854 |
| author_role |
author |
| author2 |
Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856 Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022 Calderón Tazón, Alicia|||0000-0002-7205-2040 Duarte Campderros, Jorge|||0000-0003-0687-5214 Fernández García, Marcos|||0000-0002-4824-1087 Fernández Madrazo, Celia|||0000-0001-9748-4336 Fernández Manteca, Pedro José|||0000-0003-2566-7496 García Alonso, Andrea Gómez Gramuglio, Gervasio|||0000-0002-1077-6553 Martínez Rivero, Celso Martínez Ruiz del Árbol, Pablo|||0000-0002-7737-5121 Matorras Weinig, Francisco|||0000-0003-4295-5668 Matorras Cuevas, Pablo|||0000-0001-7481-7273 Piedra Gómez, Jonatan|||0000-0002-9157-1700 Prieëls, Cedric Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto|||0000-0002-3639-0368 Scodellaro, Luca|||0000-0002-4974-8330 Vila Álvarez, Iván|||0000-0002-6797-7209 Vizán García, Jesús Manuel|||0000-0002-6823-8854 |
| author2_role |
author 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 |
Universidad de Cantabria |
| dc.subject.none.fl_str_mv |
Large detector-systems performance Pattern recognition Cluster finding Calibration and fitting methods |
| topic |
Large detector-systems performance Pattern recognition Cluster finding Calibration and fitting methods |
| description |
Many measurements at the LHC require efficient identification of heavy-flavour jets, i.e. jets originating from bottom (b) or charm (c) quarks. An overview of the algorithms used to identify c jets is described and a novel method to calibrate them is presented. This new method adjusts the entire distributions of the outputs obtained when the algorithms are applied to jets of different flavours. It is based on an iterative approach exploiting three distinct control regions that are enriched with either b jets, c jets, or light-flavour and gluon jets. Results are presented in the form of correction factors evaluated using proton-proton collision data with an integrated luminosity of 41.5 fb-1 at ?s = 13 TeV, collected by the CMS experiment in 2017. The closure of the method is tested by applying the measured correction factors on simulated data sets and checking the agreement between the adjusted simulation and collision data. Furthermore, a validation is performed by testing the method on pseudodata, which emulate various mismodelling conditions. The calibrated results enable the use of the full distributions of heavy-flavour identification algorithm outputs, e.g. as inputs to machine-learning models. Thus, they are expected to increase the sensitivity of future physics analyses. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2022-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 NA http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10902/28626 |
| url |
https://hdl.handle.net/10902/28626 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.source.none.fl_str_mv |
Journal of Instrumentation, 2022, 17, P03014 reponame:UCrea Repositorio Abierto de la Universidad de Cantabria instname:Universidad de Cantabria (UC) |
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Universidad de Cantabria (UC) |
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UCrea Repositorio Abierto de la Universidad de Cantabria |
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UCrea Repositorio Abierto de la Universidad de Cantabria |
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|
| repository.mail.fl_str_mv |
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1869411510547120128 |
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15.301603 |