Mostrar el registro sencillo del ítem

Search for Z′ bosons decaying to pairs of heavy Majorana neutrinos in proton-proton collisions at = 13 TeV

dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorÁlvarez González, Bárbara 
dc.contributor.authorCuevas Maestro, Francisco Javier 
dc.contributor.authorFernández Menéndez, Javier 
dc.contributor.authorFolgueras Gómez, Santiago 
dc.contributor.authorGonzález Caballero, Isidro 
dc.contributor.authorGonzález Fernández, Juan Rodrigo 
dc.contributor.authorPalencia Cortezón, José Enrique 
dc.contributor.authorRamón Álvarez, Clara 
dc.contributor.authorRodríguez Bouza, Víctor 
dc.contributor.authorSoto Rodríguez, Alejandro 
dc.contributor.authorTrapote Fernández, Andrea 
dc.contributor.authorVico Villalba, Carlos 
dc.date.accessioned2024-08-26T08:33:32Z
dc.date.available2024-08-26T08:33:32Z
dc.date.issued2023
dc.identifier.citationJournal of High Energy Physics, 2023(181), (2023); doi:10.1007/JHEP11(2023)181
dc.identifier.issn1029-8479
dc.identifier.urihttps://hdl.handle.net/10651/74222
dc.description.abstractA search for the production of pairs of heavy Majorana neutrinos (Nℓ) from the decays of Z′ bosons is performed using the CMS detector at the LHC. The data were collected in proton-proton collisions at a center-of-mass energy of = 13 TeV, with an integrated luminosity of 138 fb−1. The signature for the search is an excess in the invariant mass distribution of the final-state objects, two same-flavor leptons (e or μ) and at least two jets. No significant excess of events beyond the expected background is observed. Upper limits at 95% confidence level are set on the product of the Z′ production cross section and its branching fraction to a pair of Nℓ, as functions of Nℓ and Z′ boson masses ( and , respectively) for from 0.4 to 4.6 TeV and from 0.1 TeV to /2. In the theoretical framework of a left-right symmetric model, exclusion bounds in the - plane are presented in both the electron and muon channels. The observed upper limit on reaches up to 4.42 TeV. These are the most restrictive limits to date on the mass of Nℓ as a function of the Z′ boson mass.
dc.description.sponsorshipSCOAP; MCIN/AEI and PCTI (Spain)
dc.language.isoeng
dc.relation.ispartofJournal of High Energy Physics
dc.rights© 2023 CERN
dc.rightsCC Reconocimiento 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceWOS:001116685900001
dc.titleSearch for Z′ bosons decaying to pairs of heavy Majorana neutrinos in proton-proton collisions at = 13 TeV
dc.typejournal article
dc.identifier.doi10.1007/JHEP11(2023)181
dc.relation.publisherversionhttp://dx.doi.org/10.1007/JHEP11(2023)181
dc.rights.accessRightsopen access
dc.type.hasVersionVoR


Ficheros en el ítem

untranslated

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

© 2023 CERN
Este ítem está sujeto a una licencia Creative Commons