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CMS Physics Analysis Summaries | |
Report number | CMS-PAS-HIG-13-020 |
Title | Search for the standard model Higgs boson produced in association with top quarks in multilepton final states |
Corporate author(s) | CMS Collaboration |
Collaboration | CMS Collaboration |
Subject category | Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN LHC ; CMS |
Abstract | A search for the standard model Higgs boson produced in association with a top quark pair is presented, using 19.6~fb−1 of 8 TeV pp collision data collected by the CMS experiment at the LHC. Final states with a Higgs boson that decays to either ZZ∗,WW∗, or ττ are required to have a top quark pair that decays to either lepton plus jets (tˉt→ℓνjjbˉb) or dileptons (tˉt→ℓνℓνbˉb), where ℓ represents an electron or a muon. The following signatures are selected: two isolated same-sign leptons (electrons or muons) plus b-tagged jets, three isolated leptons plus b-tagged jets, or four isolated leptons plus b-tagged jets. The expected 95\% confidence level upper limit on the Higgs boson production cross section for a Higgs boson mass of 125.7 GeV/c2 is 2.4 times the standard model expectation, to be compared to an observed limit of 6.6. The signal strength μ, relative to the expectation for the standard model Higgs boson, is measured to be μ=3.7+1.6−1.4. |
Other source | Inspire |
Related | superseded by: CERN-PH-EP-2014-189 |
Email contact: cms-pag-conveners-higgs@cern.ch Fulltext in PDF Figure_001-a Figure_001-b Figure_001-c Figure_002-a Figure_002-b Figure_002-c Figure_002-d Figure_002-e Figure_002-f Figure_003-a Figure_003-b Figure_003-c Figure_004-a Figure_004-b Additional information for the analysis (restricted access) |