Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV
The CMS Collaboration: et al.
| Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2019 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/213660 |
| Online Access: | http://hdl.handle.net/10261/213660 |
| Access Level: | Open access |
| Keyword: | ddc:530 |
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Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeVSirunyan, A. M.Cabrillo, I. J.Calderon, AliciaChazin Quero, B.Duarte Campderros, J.Fernández-García, MarcosFernández Manteca, P. J.García Alonso, A.García-Ferrero, J.Gómez, GervasioLópez Virto, A.Marco, JesúsMartínez-Rivero, CelsoMartínez Ruiz del Arbol, P.Matorras, FranciscoPiedra, JonatanPrieels, C.Rodrigo Anoro, TeresaRuiz Jimeno, AlbertoScodellaro, LucaTrevisani, N.Vila, IvánVilar Cortabitarte, R.ddc:530The CMS Collaboration: et al.A search for a narrow Z' gauge boson with a mass between 5 and 70 GeV resulting from an Lμ − Lτ U(1) local gauge symmetry is reported. Theories that predict such a particle have been proposed as an explanation of various experimental discrepancies, including the lack of a dark matter signal in direct-detection experiments, tension in the measurement of the anomalous magnetic moment of the muon, and reports of possible lepton flavor universality violation in B meson decays. A data sample of proton-proton collisions at a center-of-mass energy of 13 TeV is used, corresponding to an integrated luminosity of 77.3 fb-1 recorded in 2016 and 2017 by the CMS detector at the LHC. Events containing four muons with an invariant mass near the standard model Z boson mass are analyzed, and the selection is further optimized to be sensitive to the events that may contain Z→Z' μμ→4μ decays. The event yields are consistent with the standard model predictions. Upper limits of 10(-8) – 10(-7) at 95% confidence level are set on the product of branching fractions B(Z→Z' μμ)B(Z'→μμ), depending on the Z' mass, which excludes a Z' boson coupling strength to muons above 0.004–0.3. These are the first dedicated limits on Lμ − Lτ models at the LHC and result in a significant increase in the excluded model parameter space. The results of this search may also be used to constrain the coupling strength of any light Z' gauge boson to muons.Individuals have received support from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, contract No. 675440 (European Union); the Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu, grant MDM-2015-0509 and the Programa Severo Ochoa del Principado de Asturias.ElsevierEuropean CommissionMinisterio de Economía y Competitividad (España)European Research CouncilPrincipado de AsturiasConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/213660reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/675440info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MDM-2015-0509https://doi.org/10.1016/j.physletb.2019.01.072Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2136602026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| title |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| spellingShingle |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. ddc:530 |
| title_short |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| title_full |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| title_fullStr |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| title_full_unstemmed |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| title_sort |
Search for an Lμ − Lτ gauge boson using Z → 4μ events in proton-proton collisions at √s = 13 TeV |
| dc.creator.none.fl_str_mv |
Sirunyan, A. M. Cabrillo, I. J. Calderon, Alicia Chazin Quero, B. Duarte Campderros, J. Fernández-García, Marcos Fernández Manteca, P. J. García Alonso, A. García-Ferrero, J. Gómez, Gervasio López Virto, A. Marco, Jesús Martínez-Rivero, Celso Martínez Ruiz del Arbol, P. Matorras, Francisco Piedra, Jonatan Prieels, C. Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto Scodellaro, Luca Trevisani, N. Vila, Iván Vilar Cortabitarte, R. |
| author |
Sirunyan, A. M. |
| author_facet |
Sirunyan, A. M. Cabrillo, I. J. Calderon, Alicia Chazin Quero, B. Duarte Campderros, J. Fernández-García, Marcos Fernández Manteca, P. J. García Alonso, A. García-Ferrero, J. Gómez, Gervasio López Virto, A. Marco, Jesús Martínez-Rivero, Celso Martínez Ruiz del Arbol, P. Matorras, Francisco Piedra, Jonatan Prieels, C. Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto Scodellaro, Luca Trevisani, N. Vila, Iván Vilar Cortabitarte, R. |
| author_role |
author |
| author2 |
Cabrillo, I. J. Calderon, Alicia Chazin Quero, B. Duarte Campderros, J. Fernández-García, Marcos Fernández Manteca, P. J. García Alonso, A. García-Ferrero, J. Gómez, Gervasio López Virto, A. Marco, Jesús Martínez-Rivero, Celso Martínez Ruiz del Arbol, P. Matorras, Francisco Piedra, Jonatan Prieels, C. Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto Scodellaro, Luca Trevisani, N. Vila, Iván Vilar Cortabitarte, R. |
| author2_role |
author author 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 |
European Commission Ministerio de Economía y Competitividad (España) European Research Council Principado de Asturias Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
ddc:530 |
| topic |
ddc:530 |
| description |
The CMS Collaboration: et al. |
| publishDate |
2019 |
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2019 2020 2020 2020 |
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info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/213660 |
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http://hdl.handle.net/10261/213660 |
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Inglés |
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Inglés |
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#PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/675440 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MDM-2015-0509 https://doi.org/10.1016/j.physletb.2019.01.072 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Elsevier |
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Elsevier |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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