{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.69501.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1374493"}},{"@id":"https://doi.org/10.1007/JHEP09(2015)108","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2015","description":"CERN-LHC.  A search for heavy leptons decaying to a $Z$ boson and an electron or a muon is presented. The search is based on $pp$ collision data taken at $\\sqrt{s}=8$ TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb$^{-1}$. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a $Z$ boson decay.  No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived.  The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114-176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100-468 GeV are excluded.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t1","@type":"Dataset","description":"The $\\delta m=m_{3\\ell}-m_{ell^+\\ell^-}$ distributions for the $4\\ell$ category and $Z+e$ flavor channel.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t2","@type":"Dataset","description":"The $\\delta m=m_{3\\ell}-m_{ell^+\\ell^-}$ distributions for the $4\\ell$ category and $Z+\\mu$ flavor channel.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t3","@type":"Dataset","description":"The $\\delta m=m_{3\\ell}-m_{ell^+\\ell^-}$ distributions for the $3\\ell+jj$ category and $Z+e$ flavor channel.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t4","@type":"Dataset","description":"The $\\delta m=m_{3\\ell}-m_{ell^+\\ell^-}$ distributions for the $3\\ell+jj$ category and $Z+\\mu$ flavor channel.","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t5","@type":"Dataset","description":"The $\\delta m=m_{3\\ell}-m_{ell^+\\ell^-}$ distributions for the $3\\ell$-only category and $Z+e$ flavor channel.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t6","@type":"Dataset","description":"The $\\delta m=m_{3\\ell}-m_{ell^+\\ell^-}$ distributions for the $3\\ell$-only category and $Z+\\mu$ flavor channel.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t7","@type":"Dataset","description":"95\\% CL upper limits on the vector-like lepton cross section, for heavy vector-like leptons coupling exclusively to electrons.","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t8","@type":"Dataset","description":"95\\% CL upper limits on the vector-like lepton cross section, for heavy vector-like leptons coupling exclusively to muons.","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t9","@type":"Dataset","description":"95% CL upper limits on the type-III seesaw production cross section, for the seesaw leptons coupling exclusively to electrons.","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t10","@type":"Dataset","description":"95% CL upper limits on the type-III seesaw production cross section, for the seesaw leptons coupling exclusively to muons.","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t11","@type":"Dataset","description":"95% CL upper limits on $\\sigma_{\\mathrm{vis}}$ for the $Z+e$ flavour channel, derived without dividing events into the three categories.","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t12","@type":"Dataset","description":"95% CL upper limits on $\\sigma_{\\mathrm{vis}}$ for the $Z+\\mu$ flavour channel, derived without dividing events into the three categories.","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t13","@type":"Dataset","description":"95% CL upper limits on $\\sigma_{\\mathrm{vis}}$ for the $Z+e$ flavour channel, for events in the four lepton signal region.:.","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t14","@type":"Dataset","description":"95% CL upper limits on $\\sigma_{\\mathrm{vis}}$ for the $Z+\\mu$ flavour channel, for events in the four lepton signal region.","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t15","@type":"Dataset","description":"95% CL upper limits on $\\sigma_{\\mathrm{vis}}$ for the $Z+e$ flavour channel, for events in the two-jet signal region.","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t16","@type":"Dataset","description":"95% CL upper limits on $\\sigma_{\\mathrm{vis}}$ for the $Z+\\mu$ flavour channel, for events in the two-jet signal region.","name":"Table 16"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t17","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)e^{\\pm}$ decay in the inclusive category and $Z+e$ flavor channel, for events...","name":"Table 17"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t18","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)\\mu^{\\pm}$ decay in the inclusive category and $Z+\\mu$ flavor channel, for events...","name":"Table 18"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t19","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)e^{\\pm}$ decay in the $4\\ell$ category and $Z+e$ flavor channel, for events...","name":"Table 19"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t20","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)\\mu^{\\pm}$ decay in the $4\\ell$ category and $Z+\\mu$ flavor channel, for events...","name":"Table 20"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t21","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)e^{\\pm}$ decay in the $3\\ell+jj$ category and $Z+e$ flavor channel, for events...","name":"Table 21"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t22","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)\\mu^{\\pm}$ decay in the $3\\ell+jj$ category and $Z+\\mu$ flavor channel, for events...","name":"Table 22"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t23","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)e^{\\pm}$ decay in the $3\\ell$-only category and $Z+e$ flavor channel, for events...","name":"Table 23"},{"@id":"https://doi.org/10.17182/hepdata.69501.v1/t24","@type":"Dataset","description":"Efficiencies for reconstructing and correctly identifying the $L^{\\pm}\\rightarrow Z(\\ell\\ell)\\mu^{\\pm}$ decay in the $3\\ell$-only category and $Z+\\mu$ flavor channel, for events...","name":"Table 24"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1374493?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/69501"}],"inLanguage":"en","name":"Search for heavy lepton resonances decaying to a $Z$ boson and a lepton in $pp$ collisions at $\\sqrt{s}=8$ TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1374493?version=1","version":1}