{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.133151.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2161685"}}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2022","description":"Results are presented of a search for a heavy Majorana neutrino $\\mathrm{N}_{\\ell}$ decaying into two same-flavor leptons $\\ell$ (electrons or muons) and a quark-pair jet. A model is considered in which the $\\mathrm{N}_{\\ell}$ is an excited neutrino in a compositeness scenario. The analysis is performed using a sample of proton-proton collisions at $\\sqrt{s}=13\\TeV$ recorded by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 138~\\fbinv. The data are found to be in agreement with the standard model prediction. For the process in which the $\\mathrm{N}_{\\ell}$ is produced in association with a lepton, followed by the decay of the $\\mathrm{N}_{\\ell}$ to a same-flavor lepton and a quark pair, an upper limit at $95\\%$ confidence level on the product of the cross section and branching fraction is obtained as a function of the $\\mathrm{N}_{\\ell}$ mass $m_{\\mathrm{N}_{\\ell}}$ and the compositeness scale $\\Lambda$.For this model the data exclude the existence of $\\mathrm{N}_{\\mathrm{e}}$ ($\\mathrm{N}_{\\PGm}$)for $m_{\\mathrm{N}_{\\ell}}$ below 6.0\\,(6.1)\\TeV at the limit where $m_{\\mathrm{N}_{\\ell}}$ is equal to $\\Lambda$.  For $m_{\\mathrm{N}_{\\ell}}\\approx1\\TeV$, values of $\\Lambda$ less than 20\\,(23)\\TeV are excluded.These results represent a considerable improvement in sensitivity, covering a larger parameter space than previous searches in $\\Pp\\Pp$ collisions at 13\\TeV.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.133151.v1/t1","@type":"Dataset","description":"Cut-flow table mN=0.5TeV, electron, muon channel, 2018.","name":"Cut-flow table"},{"@id":"https://doi.org/10.17182/hepdata.133151.v1/t2","@type":"Dataset","description":"Distributions of \\mllj for the data, and the post-fit backgrounds (stacked histograms), in the SRs of the \\eeqq channel. The...","name":"Figure 4a"},{"@id":"https://doi.org/10.17182/hepdata.133151.v1/t3","@type":"Dataset","description":"Distributions of \\mllj for the data, and the post-fit backgrounds (stacked histograms), in the SRs of the \\mmqq channel. The...","name":"Figure 4b"},{"@id":"https://doi.org/10.17182/hepdata.133151.v1/t4","@type":"Dataset","description":"Theoretical cross-sections for heavy composite majorana neutrino signals for $\\Lambda$=13 TeV.","name":"Theoretical cross-sections table"},{"@id":"https://doi.org/10.17182/hepdata.133151.v1/t5","@type":"Dataset","description":"Exclusion limits on the product of cross section and branching fraction for the electron channel, as a function of the...","name":"Figure 5a"},{"@id":"https://doi.org/10.17182/hepdata.133151.v1/t6","@type":"Dataset","description":"Exclusion limits on the product of cross section and branching fraction for the muon channel, as a function of the...","name":"Figure 5b"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2161685?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/133151"}],"inLanguage":"en","name":"Search for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at $\\sqrt{s}$ = 13 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2161685?version=1","version":1}