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Centrality determination in heavy-ion collisions with the LHCb detector

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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Brossa Gonzalo, A., Cicala, M. F., Costa Sobral, C. M. , Garcia Martin, L. M., Gershon, T. J., Hunter, R. J., Jones, T. P., Kenzie, M., Kreps, Michal, Latham, Thomas, Lupton, Oliver, Millard, E., Morris, A. G., Pagare, B., Ramos Pernas, M., Sahoo, Niladri and Vesterinen, M.). (2022) Centrality determination in heavy-ion collisions with the LHCb detector. Journal of Instrumentation, 17 (5). P05009. doi:10.1088/1748-0221/17/05/P05009 ISSN 1748-0221.

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Official URL: https://doi.org/10.1088/1748-0221/17/05/P05009

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Abstract

The centrality of heavy-ion collisions is directly related to the created medium in these interactions. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at √sNN = 5 TeV and lead-neon fixed-target collisions at √sNN = 69 GeV. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality for the lead-lead collisions is in good agreement with the correspondence found in other experiments, and the centrality measurements for the lead-neon collisions presented here are performed for the first time in fixed-target collisions at the LHC.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Heavy ion collisions, Particles (Nuclear physics), Heavy Ions, Nuclear physics -- Experiments
Journal or Publication Title: Journal of Instrumentation
Publisher: IOP Publishing Ltd
ISSN: 1748-0221
Official Date: 5 May 2022
Dates:
DateEvent
5 May 2022Published
29 March 2022Accepted
Volume: 17
Number: 5
Article Number: P05009
DOI: 10.1088/1748-0221/17/05/P05009
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 28 July 2022
Date of first compliant Open Access: 28 July 2022
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDCERNhttp://dx.doi.org/10.13039/100012470
UNSPECIFIEDCoordenação de Aperfeiçoamento de Pessoal de Nível Superiorhttp://dx.doi.org/10.13039/501100002322
UNSPECIFIEDConselho Nacional de Desenvolvimento Científico e Tecnológicohttp://dx.doi.org/10.13039/501100003593
UNSPECIFIEDFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeirohttp://dx.doi.org/10.13039/501100004586
UNSPECIFIEDFinanciadora de Estudos e Projetoshttp://dx.doi.org/10.13039/501100004809
UNSPECIFIED[MSTPRC] Ministry of Science and Technology of the People's Republic of Chinahttp://dx.doi.org/10.13039/501100002855
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIED[CNRS] Centre National de la Recherche Scientifiquehttp://dx.doi.org/10.13039/501100004794
UNSPECIFIED[IN2P3] Institut national de physique nucléaire et de physique des particuleshttp://viaf.org/viaf/137207166
UNSPECIFIEDBundesministerium für Bildung und Forschunghttp://dx.doi.org/10.13039/501100002347
UNSPECIFIED[DFG] Deutsche Forschungsgemeinschafthttp://dx.doi.org/10.13039/501100001659
UNSPECIFIEDMax-Planck-Gesellschafthttp://dx.doi.org/10.13039/501100004189
UNSPECIFIED[INFN] Instituto Nazionale di Fisica Nuclearehttp://dx.doi.org/10.13039/501100004007
UNSPECIFIED[NWO] Nederlandse Organisatie voor Wetenschappelijk Onderzoekhttp://dx.doi.org/10.13039/501100003246
UNSPECIFIEDMinisterstwo Nauki i Szkolnictwa Wyższegohttp://dx.doi.org/10.13039/501100004569
UNSPECIFIEDNarodowe Centrum Naukihttp://dx.doi.org/10.13039/501100004281
UNSPECIFIEDMinisterul Educaţiei Naţionalehttp://dx.doi.org/10.13039/501100003766
UNSPECIFIEDInstitutul de Fizică Atomicăhttp://viaf.org/viaf/154740159
UNSPECIFIED[MES] Ministry of Education and Science of the Russian Federationhttp://dx.doi.org/10.13039/501100003443
UNSPECIFIEDSpain. Ministerio de Ciencia e Innovaciónhttp://viaf.org/viaf/137614380
UNSPECIFIED[SNSF] Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschunghttp://dx.doi.org/10.13039/501100001711
UNSPECIFIED[SERI] Staatssekretariat für Bildung, Forschung und Innovationhttp://dx.doi.org/10.13039/501100007352
UNSPECIFIEDNational Academy of Sciences of Ukrainehttp://dx.doi.org/10.13039/501100004742
UNSPECIFIED[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIED[DOE] U.S. Department of Energyhttp://dx.doi.org/10.13039/100000015
UNSPECIFIEDNational Physical Science Consortiumhttp://dx.doi.org/10.13039/100013904
UNSPECIFIED[NSF] National Science Foundation (US)http://dx.doi.org/10.13039/100000001
UNSPECIFIED[ARC] Australian Research Councilhttp://dx.doi.org/10.13039/501100000923
UNSPECIFIEDAustralian Research Data Commonshttp://viaf.org/viaf/220706131
UNSPECIFIEDAlexander von Humboldt-Stiftunghttp://dx.doi.org/10.13039/100005156
EPLANETH2020 Marie Skłodowska-Curie Actionshttp://dx.doi.org/10.13039/100010665
UNSPECIFIEDEuropean Research Councilhttp://dx.doi.org/10.13039/501100000781
UNSPECIFIEDAix-Marseille Initiative of excellenceUNSPECIFIED
UNSPECIFIED[ANR] Agence Nationale de la Recherchehttp://dx.doi.org/10.13039/501100001665
UNSPECIFIEDInstitute of the Physics of the UniverseUNSPECIFIED
UNSPECIFIEDLabex P2IO UNSPECIFIED
UNSPECIFIEDRégion Auvergne-Rhône-AlpesUNSPECIFIED
UNSPECIFIEDChinese Academy of Sciences (CAS) President’s International Fellowship InitiativeUNSPECIFIED
UNSPECIFIEDChinese Academy of Sciences (CAS) Center for Excellence in Particle PhysicsUNSPECIFIED
UNSPECIFIEDFundamental Research Funds for the Central Universitieshttp://dx.doi.org/10.13039/501100012226
UNSPECIFIEDKey Technologies Research and Development Program of Guangzhouhttp://dx.doi.org/10.13039/501100013068
UNSPECIFIED[RFBR]Russian Foundation for Basic Researchhttp://dx.doi.org/10.13039/501100002261
UNSPECIFIED[RSF] Russian Science Foundationhttp://dx.doi.org/10.13039/501100006769
UNSPECIFIEDYandex LLC UNSPECIFIED
UNSPECIFIEDGeneralitat Valencianahttp://dx.doi.org/10.13039/501100003359
UNSPECIFIEDXunta de Galiciahttp://dx.doi.org/10.13039/501100010801
UNSPECIFIEDGeneralitat de Catalunyahttp://dx.doi.org/10.13039/501100002809
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
UNSPECIFIED[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDUK Research and Innovationhttp://dx.doi.org/10.13039/100014013
Contributors:
ContributionNameContributor ID
Research GroupLHCb Collaboration, UNSPECIFIED

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