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Search for the Z boson decay to ttmm in proton-proton collisions at Vs = 13 TeV

dc.contributor.authorHayrapetyan, A.es_ES
dc.contributor.authorBhowmik, Sandeepes_ES
dc.contributor.authorBlanco Fernández, Sergio es_ES
dc.contributor.authorBrochero Cifuentes, Javier Andrés es_ES
dc.contributor.authorCabrillo Bartolomé, José Ibán es_ES
dc.contributor.authorCalderón Tazón, Alicia es_ES
dc.contributor.authorDuarte Campderros, Jorge es_ES
dc.contributor.authorFernández García, Marcos es_ES
dc.contributor.authorGómez Gramuglio, Gervasio es_ES
dc.contributor.authorLasaosa García, Claraes_ES
dc.contributor.authorLópez Ruiz, Rubénes_ES
dc.contributor.authorMartínez Rivero, Celsoes_ES
dc.contributor.authorMartínez Ruiz del Árbol, Pablo es_ES
dc.contributor.authorMatorras Weinig, Francisco es_ES
dc.contributor.authorMatorras Cuevas, Pablo es_ES
dc.contributor.authorNavarrete Ramos, Efrénes_ES
dc.contributor.authorPiedra Gómez, Jonatan es_ES
dc.contributor.authorScodellaro, Luca es_ES
dc.contributor.authorVila Álvarez, Iván es_ES
dc.contributor.authorVizán García, Jesús Manuel es_ES
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2025-03-25T16:01:33Z
dc.date.available2025-03-25T16:01:33Z
dc.date.issued2024-10-18es_ES
dc.identifier.issn0031-9007es_ES
dc.identifier.issn1079-7114es_ES
dc.identifier.urihttps://hdl.handle.net/10902/36091
dc.description.abstractThe first search for the Z boson decay to ttmm at the CERN LHC is presented, based on data collected by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb -1 The data are compatible with the predicted background. For the first time, an upper limit at the 95% confidence level of 6.9 times the standard model expectation is placed on the ratio of the Z --> ttmm to Z --> 4m branching fractions. Limits are also placed on the six flavor-conserving four-lepton effective-field-theory operators involving two muons and two tau leptons, for the first time testing all such operators.es_ES
dc.format.extent20 p.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rights© 2024 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Funded by SCOAP3.*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourcePhysical Review Letters, 2024, 133(16), 161805es_ES
dc.titleSearch for the Z boson decay to ttmm in proton-proton collisions at Vs = 13 TeVes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1103/PhysRevLett.133.161805es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1103/PhysRevLett.133.161805es_ES
dc.type.versionpublishedVersiones_ES


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© 2024 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Funded by SCOAP3.Excepto si se señala otra cosa, la licencia del ítem se describe como © 2024 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Funded by SCOAP3.