CERN Accelerating science

CMS Physics Analysis Summaries
Report number	CMS-PAS-EXO-14-009
Title	Search for a massive resonance decaying into a Higgs boson and a W or Z boson in hadronic final states in proton-proton collisions at sqrt(s) = 8 TeV
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	A search for a massive resonance decaying into a standard model Higgs boson (H) and a W or Z boson is reported. The analysis is performed on a data sample corresponding to an integrated luminosity of 19.7~fb$^{-1}$, collected in proton-proton collisions at a centre-of-mass energy of 8~TeV with the CMS detector at the LHC. Signal events in which the decay products of Higgs, W or Z bosons at high Lorentz boost are contained within a single reconstructed jet are identified using jet substructure techniques, including the tagging of b hadrons. This is the first search for heavy resonances decaying into HW or HZ resulting in an all-jets final state, as well as the first application of jet substructure techniques to identify ${\rm H\to WW^*\to 4q}$ decays at high Lorentz boost. No significant signal is observed and limits are set at the 95\% confidence level on the production cross section of W' and Z' in a model with mass-degenerate charged and neutral spin-1 resonances. Resonance masses are excluded for W' in [1.0, 1.6] TeV, for Z' in [1.0, 1.1], [1.3,1.5] TeV, and for mass-degenerate W' and Z' in [1.0, 1.7] TeV ranges.
Other source	Inspire
Related	superseded by: CERN-PH-EP-2015-096
Email contact: [email protected]  Fulltext in PDF  Figure_009-a  Figure_009-b  Figure_010  Figure_001  Figure_006-a  Figure_006-b  Figure_006-c  Figure_005-a  Figure_004  Figure_005-b  Figure_002  Figure_003-b  Figure_003-a  Figure_008-c  Figure_007-b  Figure_007-a  Figure_008-b  Figure_008-a  Additional information for the analysis (restricted access)