Abstract
This Letter describes a search for Higgs boson pair production using the combined results from four final states: bbγγ, bbττ, bbbb, and bbVV, where V represents a W or Z boson. The search is performed using data collected in 2016 by the CMS experiment from LHC proton-proton collisions at sqrt[s]=13 TeV, corresponding to an integrated luminosity of 35.9 fb^{-1}. Limits are set on the Higgs boson pair production cross section. A 95%confidence level observed (expected) upper limit on the nonresonant production cross section is set at 22.2 (12.8) times the standard model value. A search for narrow resonances decaying to Higgs boson pairs is also performed in the mass range 250-3000GeV. No evidence for a signal is observed, and upper limits are set on the resonance production cross section.
Highlights
Where V represents a W experiment from LHC porroZtonb-opsroonto. nThceolsleisairocnhsisatpeprfffisoffi r1⁄4me1d3 using TeV, corresponding to an integrated luminosity of 35.9 fb−1
The discovery of the Higgs boson (H) by the ATLAS and CMS Collaborations [1,2,3] was a major step in the understanding of the mechanism of electroweak symmetry breaking
The Higgs boson mass was jointly determined by the two experiments using the CERN LHC Run 1 data to be mH 1⁄4 125.09 Æ 0.24 GeV [4] and recently by CMS using partial Run 2 data with even better accuracy, mH 1⁄4 125.26 Æ 0.21 GeV [5]
Summary
Where V represents a W experiment from LHC porroZtonb-opsroonto. nThceolsleisairocnhsisatpeprfffisoffi r1⁄4me1d3 using TeV, corresponding to an integrated luminosity of 35.9 fb−1. Studies of pair production of Higgs bosons, each of which can decay in different channels, allow one to probe different regions of the anomalous couplings space and of the resonant invariant mass spectrum. Using the data collected in 2016 at s 1⁄4 13 TeV, the CMS and ATLAS Collaborations performed searches in the bbγγ [30,31], bbττ [32,33], and bbbb [34,35,36,37,38] final states, with the CMS Collaboration having results in the bbVV [39] channel as well, where V denotes either a W or a Z boson that decays leptonically.
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