Combination of standard model Higgs boson searches and measurements
of the properties of the new boson with a mass near 125 GeV

CMS Physics Analysis Summaries
Report number	CMS-PAS-HIG-12-045
Title	Combination of standard model Higgs boson searches and measurements of the properties of the new boson with a mass near 125 GeV
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	Results are presented from searches for the standard model (SM) Higgs boson in proton-proton collisions at $\sqrt{s}$ = 7 and 8 TeV, using data samples corresponding to integrated luminosities of up to 5.1 fb$^{-1}$ at 7 TeV and up to 12.2 fb$^{-1}$ at 8 TeV. The search is performed in the mass range 110--1000~GeV in five decay modes: $\gamma\gamma$, ZZ, WW, $\tau \tau$, and bb. Updated results are presented except for the $\gamma\gamma$ mode. The significance of the recently discovered boson is now $6.9 \, \sigma$. Its mass is measured to be $125.8~\pm0.4~(\mathrm{stat})~\pm0.4~(\mathrm{syst})$~GeV. The event yields obtained by the different analyses targeting specific decay modes and production mechanisms are consistent with those expected for the SM Higgs boson. The best-fit signal strength for all channels combined, expressed in units of the SM Higgs boson cross section, is 0.88$\pm$0.21 at the measured mass. The consistency of the couplings of the observed boson with those predicted for the SM Higgs boson is tested in various ways, and no significant deviations are found. Under the assumption that the observed boson has spin zero, the data disfavour the pseudo-scalar hypothesis $0^-$ with a CL$_s$ value of 2.4\%.
Other source	Inspire
Email contact: cms-pag-conveners-higgs@cern.ch Fulltext in PDF Figure_001-a Figure_001-b Figure_002 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_007-a Figure_007-b Figure_008 Figure_009 Figure_010-a Figure_010-b Figure_010-c Figure_011 Figure_012-a Figure_012-b Figure_013-a Figure_013-b Figure_014-a Figure_014-b Figure_015 Figure_016-a Figure_016-b Figure_017-a Figure_017-b Figure_018-a Figure_018-b Figure_018-c Figure_018-d Figure_018-e Figure_018-f Figure_019 Additional information for the analysis (restricted access)