{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.145688.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2735808"}},{"@id":"https://doi.org/10.1007/JHEP03(2024)105","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2023","description":"A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2-20 GeV HNL mass range for the first time. Events comprising two leptons (electrons or muons) and jets are analyzed in a data sample of proton-proton collisions, recorded with the CMS experiment at the CERN LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 $\\text{fb}^{-1}$. A novel jet tagger, based on a deep neural network, has been developed to identify jets from an HNL decay using various features of the jet and its constituent particles. The network output can be used as a powerful discriminating tool to probe a broad range of HNL lifetimes and masses. Contributions from background processes are determined from data. No excess of events in data over the expected background is observed. Upper limits on the HNL production cross section are derived as functions of the HNL mass and the three coupling strengths $V_{\\ell\\text{N}}$ to each lepton generation $\\ell$ and presented as exclusion limits in the coupling-mass plane, as lower limits on the HNL lifetime, and on the HNL mass. In this search, the most stringent limit on the coupling strength is obtained for pure muon coupling scenarios; values of $|V_{\\mu\\text{N}}|^{2}>5\\,(4)\\times 10^{-7}$ are excluded for Dirac (Majorana) HNLs with a mass of 10 GeV at a confidence level of 95% that correspond to proper decay lengths of 17 (10) mm.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t1","@type":"Dataset","description":"Observed number of events and predicted number of background events per category for resolved categories","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t2","@type":"Dataset","description":"Observed number of events and predicted number of background events per category for boosted categories","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t3","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL pure electron coupling scenario","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t4","@type":"Dataset","description":"Two-dimensional exclusion limits for Dirac HNL pure electron coupling scenario","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t5","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL pure muon coupling scenario","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t6","@type":"Dataset","description":"Two-dimensional exclusion limits for Dirac HNL pure muon coupling scenario","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t7","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL pure tau lepton coupling scenario","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t8","@type":"Dataset","description":"Two-dimensional exclusion limits for Dirac HNL pure tau lepton coupling scenario","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t9","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL mixed electron-muon coupling scenario","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t10","@type":"Dataset","description":"DTwo-dimensional exclusion limits for Dirac HNL mixed electron-muon coupling scenario","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t11","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL mixed electron-tau lepton coupling scenario","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t12","@type":"Dataset","description":"Two-dimensional exclusion limits for Dirac HNL mixed electron-tau lepton coupling scenario","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t13","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL mixed muon-tau lepton coupling scenario","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t14","@type":"Dataset","description":"Two-dimensional exclusion limits for Dirac HNL mixed muon-tau lepton coupling scenario","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t15","@type":"Dataset","description":"Two-dimensional exclusion limits for Majorana HNL democratic lepton coupling scenario","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t16","@type":"Dataset","description":"Two-dimensional exclusion limits for Dirac HNL democratic lepton coupling scenario","name":"Table 16"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t17","@type":"Dataset","description":"Lower limits on Majorana HNL mass for fixed proper decay length of $c\\tau=0.1\\,\\text{mm}$","name":"Table 17"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t18","@type":"Dataset","description":"Lower limits on Dirac HNL mass for fixed proper decay length of $c\\tau=0.1\\,\\text{mm}$","name":"Table 18"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t19","@type":"Dataset","description":"Lower limits on Majorana HNL mass for fixed proper decay length of $c\\tau=1\\,\\text{mm}$","name":"Table 19"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t20","@type":"Dataset","description":"Lower limits on Dirac HNL mass for fixed proper decay length of $c\\tau=1\\,\\text{mm}$","name":"Table 20"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t21","@type":"Dataset","description":"Lower limits on Majorana HNL proper decay length for fixed mass of 4.5 GeV","name":"Table 21"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t22","@type":"Dataset","description":"Lower limits on Dirac HNL proper decay length for fixed mass of 4.5 GeV","name":"Table 22"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t23","@type":"Dataset","description":"Lower limits on Majorana HNL proper decay length for fixed mass of 8 GeV","name":"Table 23"},{"@id":"https://doi.org/10.17182/hepdata.145688.v1/t24","@type":"Dataset","description":"Lower limits on Dirac HNL proper decay length for fixed mass of 8 GeV","name":"Table 24"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2735808?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/145688"}],"inLanguage":"en","name":"Search for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2735808?version=1","version":1}