Evidence for a particle decaying to W+W- in the fully leptonic final state in a standard model Higgs boson search in pp collisions at the LHC (original) (raw)
| CMS Physics Analysis Summaries | |
|---|---|
| Report number | CMS-PAS-HIG-12-042 |
| Title | Evidence for a particle decaying to W+W- in the fully leptonic final state in a standard model Higgs boson search in pp collisions at the LHC |
| Corporate author(s) | CMS Collaboration |
| Collaboration | CMS Collaboration |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Abstract | An update of a previous search for the standard model Higgs boson decaying to W$^+$W$^-$ in pp collisions at sqrts=8\sqrt{s} = 8sqrts=8 TeV is reported. The event sample corresponds to an integrated luminosity of 12.1pm0.512.1 \pm 0.512.1pm0.5 fb$^{-1}$, collected by the CMS detector at the LHC in 2012. The 2011 results obtained at sqrts=7\sqrt{s} = 7sqrts=7 TeV for an integrated luminosity of 4.94.94.9 fb$^{-1}$ are added to the present analysis. The W$^+$W$^-$ candidates are selected in events with two oppositely charged leptons and large missing transverse momentum. An excess of events is observed above background which is consistent with the expectations from a standard model Higgs boson of mass 125 GeV and has a statistical significance of 3.1 standard deviations for this mass. This result provides evidence for a Higgs-like particle decaying to W$^+$W$^-$. No other excess of events is observed over the full accessible mass range. Additional standard model Higgs-like bosons are excluded in the mass range 128-600 GeV at 95\% confidence level. |
| Other source | Inspire |
Email contact: cms-pag-conveners-higgs@cern.ch                                   Fulltext in PDF Figure_001-a Figure_001-b Figure_002-a Figure_002-b Figure_003-a Figure_003-b Figure_004-a Figure_004-b Figure_005-a Figure_005-b Figure_006-a Figure_006-b Figure_006-c Figure_006-d Figure_007-a Figure_007-b Figure_007-c Figure_007-d Figure_008-a Figure_008-b Figure_009-a Figure_009-b Figure_009-c Figure_010-a Figure_010-b Figure_010-c Figure_011-a Figure_011-b Figure_011-c Figure_011-d Figure_012-a Figure_012-b Figure_013 Additional information for the analysis (restricted access) |
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Record created 2012-11-14, last modified 2018-06-15