{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.68402.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1343506"}},{"@id":"https://doi.org/10.1140/epjc/s10052-015-3454-1","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2016","description":"CERN-LHC.  A search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks is presented. Events with one charged lepton (electron or muon) and at least five jets, or two oppositely charged leptons (electron-electron, muon-muon, electron-muon) and at least four jets, are selected from a data sample corresponding to an integrated luminosity of 19.5 invfb collected by the CMS experiment at the LHC in pp collisions at a centre-of-mass energy of 8 TeV.\n\nLeptons are defined by:\n- ptLepton > 30 (20) GeV for the single lepton (dilepton) channel  \n- |etaLepton| < 2.1 (2.5) for muons (electrons)\n- sum of travserse momentum of particles within dR < 0.4 of the lepton direction < 10% of ptLepton.\n\nJets are defined by clustering particle-flow particles using the anti-kT algorithm with radius R=0.5 and are required to have:\n- ptJet > 30 GeV\n- |etaJet| < 2.5.\nThe CSV algorithm is used to assign a b tagging score to each jet.\n\nIn order to separate the signal from the larger ttbar+jets background, this analysis uses a matrix element method that assigns a probability density value to each reconstructed event under signal or background hypotheses.\n\nThe ratio between the two values is used in a maximum likelihood fit to extract the signal yield. The results are presented in terms of the measured signal strength modifier, mu, relative to the standard model prediction for a Higgs boson mass of 125 GeV. The observed (expected) exclusion limit at a 95% confidence level is mu < 4.2 (3.3), corresponding to a best fit value of 1.2 +1.6,-1.5.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.68402.v1/t1","@type":"Dataset","description":"The best-fit values of the signal strength modifier obtained from the single lepton (SL) and dilepton (DL) channels alone,and from...","name":"Table 1"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1343506?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/68402"}],"inLanguage":"en","name":"Search for a Standard Model Higgs Boson Produced in Association with a Top-Quark Pair and Decaying to Bottom Quarks Using a Matrix Element Method","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1343506?version=1","version":1}