Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at $\sqrt{s}=$ 13 TeV

Abstract

A search for new heavy resonances decaying to a pair of Higgs bosons (HH) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. Data were collected with the CMS detector at the LHC in 2016-2018, corresponding to an integrated luminosity of 138 fb${}^{-1}$. Resonances with a mass between 0.8 and 4.5 TeV are considered using events in which one Higgs boson decays into a bottom quark pair and the other into final states with either one or two charged leptons. Specifically, the single-lepton decay channel HH $\to$ $\mathrm{b}\bar{\mathrm{b}}$WW${}^{\ast }$ $\to$ $\mathrm{b}\bar{\mathrm{b}}\ell \nu q{\bar{q}}^{\prime }$ and the dilepton decay channels HH $\to$ $\mathrm{b}\bar{\mathrm{b}}$WW${}^{\ast }$ $\to$ $\mathrm{b}\bar{\mathrm{b}}\ell \nu \ell \nu$ and HH $\to$ $\mathrm{b}\bar{\mathrm{b}}\tau \tau$ $\to$ $\mathrm{b}\bar{\mathrm{b}}\ell \nu \nu \ell \nu \nu$ are examined, where $\ell$ in the final state corresponds to an electron or muon. The signal is extracted using a two-dimensional maximum likelihood fit of the H $\to$ $\mathrm{b}\bar{\mathrm{b}}$ jet mass and HH invariant mass distributions. No significant excess above the standard model expectation is observed in data. Model-independent exclusion limits are placed on the product of the cross section and branching fraction for narrow spin-0 and spin-2 massive bosons decaying to HH. The results are also interpreted in the context of radion and bulk graviton production in models with a warped extra spatial dimension. The results provide the most stringent limits to date for X $\to$ HH signatures with final-state leptons and at some masses provide the most sensitive limits of all X $\to$ HH searches.

arXiv commentReplaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/B2G-20-007 (CMS Public Pages)

References in corpus (85)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• A Large Mass Hierarchy from a Small Extra Dimension
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• FastJet user manual
• Asymptotic formulae for likelihood-based tests of new physics
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Theory and phenomenology of two-Higgs-doublet models
• Parton distributions for the LHC Run II
• Confidence Level Computation for Combining Searches with Small Statistics
• Parton distributions from high-precision collider data
• Modulus Stabilization with Bulk Fields
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• Modeling the fifth dimension with scalars and gravity
• Better Jet Clustering Algorithms
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Jet substructure as a new Higgs search channel at the LHC
• Particle-flow reconstruction and global event description with the CMS detector
• Identifying Boosted Objects with N-subjettiness
• The CMS trigger system
• Soft Drop
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Merging meets matching in MC@NLO
• Observation of a new boson with mass near 125 GeV in pp collisions at sqrt(s) = 7 and 8 TeV
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV
• Soft-gluon resummation for Higgs boson production at hadron colliders
• Cosmology of Brane Models with Radion Stabilization
• Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Towards an understanding of jet substructure
• Radion Dynamics and Electroweak Physics
• Warped Phenomenology
• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• Combining QCD and electroweak corrections to dilepton production in FEWZ
• Pileup Per Particle Identification
• The t-tbar cross-section at 1.8 and 1.96 TeV: a study of the systematics due to parton densities and scale dependence
• Performance of the CMS Level-1 trigger in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Precision luminosity measurement in proton-proton collisions at $\sqrt{s}=$ 13 TeV in 2015 and 2016 at CMS
• W+W-, WZ and ZZ production in the POWHEG BOX
• Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC
• Performance of missing transverse momentum reconstruction in proton-proton collisions at $\sqrt{s}=$ 13 TeV using the CMS detector
• Higgs boson production in association with top quarks in the POWHEG BOX
• Warped Gravitons at the LHC and Beyond
• Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO
• Jet Flavour Classification Using DeepJet
• W+W-, WZ and ZZ production in the POWHEG BOX V2
• Pileup mitigation at CMS in 13 TeV data
• Efficient Identification of Boosted Semileptonic Top Quarks at the LHC
• Searching for the Kaluza-Klein Graviton in Bulk RS Models
• Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
• Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production
• Measurement of differential cross sections for top quark pair production using the lepton+jets final state in proton-proton collisions at 13 TeV
• Search for heavy resonances decaying into $WW$ in the $e\nu \mu \nu$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for heavy $ZZ$ resonances in the ${\ell }^{+}{\ell }^{-}{\ell }^{+}{\ell }^{-}$ and ${\ell }^{+}{\ell }^{-}\nu \bar{\nu }$ final states using proton proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for heavy resonances decaying into a $W$ or $Z$ boson and a Higgs boson in final states with leptons and $b$-jets in 36 fb${}^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Combination of searches for heavy resonances decaying into bosonic and leptonic final states using 36 fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for heavy diboson resonances in semileptonic final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for new resonances decaying via WZ to leptons in proton-proton collisions at sqrt(s) = 8 TeV
• Search for narrow high-mass resonances in proton-proton collisions at sqrt(s) = 8 TeV decaying to a Z and a Higgs boson
• Search for massive resonances decaying into WW, WZ, ZZ, qW, and qZ with dijet final states at $\sqrt{s}=$ 13 TeV
• Search for a massive resonance decaying to a pair of Higgs bosons in the four b quark final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for massive resonances decaying into WW, WZ or ZZ bosons in proton-proton collisions at sqrt(s) = 13 TeV
• Search for Higgs boson pair production in the $b\bar{b}W{W}^{\ast }$ decay mode at $\sqrt{s}=13$ TeV with the ATLAS detector
• Measurement of normalized differential $\mathrm{t}\overline{\mathrm{t}}$ cross sections in the dilepton channel from pp collisions at $\sqrt{s}=$ 13 TeV
• Search for heavy resonances that decay into a vector boson and a Higgs boson in hadronic final states at sqrt(s) = 13 TeV
• Combination of searches for heavy resonances decaying to WW, WZ, ZZ, WH, and ZH boson pairs in proton-proton collisions at sqrt(s) = 8 and 13 TeV
• Gravity particles from Warped Extra Dimensions, predictions for LHC
• Search for resonances decaying into a weak vector boson and a Higgs boson in the fully hadronic final state produced in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for resonant $WZ$ production in the fully leptonic final state in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for production of Higgs boson pairs in the four b quark final state using large-area jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Combination of CMS searches for heavy resonances decaying to pairs of bosons or leptons
• Search for a heavy resonance decaying to a pair of vector bosons in the lepton plus merged jet final state at $\sqrt{s}=$ 13 TeV
• Search for heavy resonances decaying to WW, WZ, or WH boson pairs in a final state consisting of a lepton and a large-radius jet in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
• Search for a heavy resonance decaying into a Z boson and a Z or W boson in 2$\ell$2q final states at $\sqrt{s}=$ 13 TeV
• Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for resonances decaying to a pair of Higgs bosons in the $\mathrm{b}\overline{\mathrm{b}}\mathrm{q}{\overline{\mathrm{q}}}^{\prime }\ell \nu$ final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Reconstruction and identification of boosted di-$\tau$ systems in a search for Higgs boson pairs using 13 TeV proton$-$proton collision data in ATLAS
• Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos and b quarks at $\sqrt{s}=$ 13 TeV
• Search for diboson resonances in the 2$\ell$2$\nu$ final state in proton-proton collisions at 13 TeV

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