Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Abstract

A measurement of the Higgs boson mass and width via its decay to two Z bosons is presented. Proton-proton collision data collected by the CMS experiment, corresponding to an integrated luminosity of 138 fb${}^{-1}$ at a center-of-mass energy of 13 TeV is used. The invariant mass distribution of four leptons in the on-shell Higgs boson decay is used to measure its mass and constrain its width. This yields the most precise single measurement of the Higgs boson mass to date, 125.04 $\pm$ 0.12 GeV, and an upper limit on the width ${\Gamma }_{\mathrm{H}}$ $<$ 330 MeV at 95% confidence level. A combination of the on- and off-shell Higgs boson production decaying to four leptons is used to determine the Higgs boson width, assuming that no new virtual particles affect the production, a premise that is tested by adding new heavy particles in the gluon fusion loop model. This result is combined with a previous CMS analysis of the off-shell Higgs boson production with decay to two leptons and two neutrinos, giving a measured Higgs boson width of 3.0 ${}_{-1.5}^{+2.0}$ MeV, in agreement with the standard model prediction of 4.1 MeV. The strength of the off-shell Higgs boson production is also reported. The scenario of no off-shell Higgs boson production is excluded at a confidence level corresponding to 3.8 standard deviations.

arXiv commentReplaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures and tables, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-019 (CMS Public Pages)

References in corpus (73)

• XGBoost: A Scalable Tree Boosting System
• 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
• 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
• A Unified Approach to the Classical Statistical Analysis of Small Signals
• 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
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• Particle-flow reconstruction and global event description with the CMS detector
• An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
• Vector boson pair production at the LHC
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• 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
• MCFM for the Tevatron and the LHC
• Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV
• Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the properties of a Higgs boson in the four-lepton final state
• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• A portrait of the Higgs boson by the CMS experiment ten years after the discovery
• A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
• NLO Higgs boson production via vector-boson fusion matched with shower in POWHEG
• Spin determination of single-produced resonances at hadron colliders
• 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
• Measurement of the Inclusive W and Z Production Cross Sections in pp Collisions at sqrt(s) = 7 TeV
• MINLO: Multi-scale improved NLO
• On the spin and parity of a single-produced resonance at the LHC
• Inadequacy of zero-width approximation for a light Higgs boson signal
• Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC
• Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM
• Higgs boson production in association with top quarks in the POWHEG BOX
• NNLO predictions for the Higgs boson signal in the H->WW->lnu lnu and H->ZZ->4l decay channels
• Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at sqrt(s) = 13 TeV
• Constraining the Higgs boson width with ZZ production at the LHC
• HW/HZ + 0 and 1 jet at NLO with the POWHEG BOX interfaced to GoSam and their merging within MiNLO
• Heavy-quark mass effects in Higgs boson production at the LHC
• Bounding the Higgs width at the LHC using full analytic results for gg -> 2e 2μ
• Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
• Constraining anomalous HVV interactions at proton and lepton colliders
• QCD corrections to ZZ production in gluon fusion at the LHC
• Pileup mitigation at CMS in 13 TeV data
• ZZ production at the LHC: fiducial cross sections and distributions in NNLO QCD
• A measurement of the Higgs boson mass in the diphoton decay channel
• Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state
• Constraining anomalous Higgs boson couplings to the heavy flavor fermions using matrix element techniques
• Vector-boson pair production at the LHC to $\mathcal{O}({\alpha }^3)$ accuracy
• Constraints on the off-shell Higgs boson signal strength in the high-mass $ZZ$ and $WW$ final states with the ATLAS detector
• Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The CMS statistical analysis and combination tool: COMBINE
• Limits on the Higgs boson lifetime and width from its decay to four charged leptons
• Constraints on anomalous Higgs boson couplings using production and decay information in the four-lepton final state
• PHANTOM: a Monte Carlo event generator for six parton final states at high energy colliders
• Production of two Z-bosons in gluon fusion in the heavy top quark approximation
• Constraints on off-shell Higgs boson production and the Higgs boson total width in $ZZ\to 4\ell$ and $ZZ\to 2\ell 2\nu$ final states with the ATLAS detector
• QCD corrections to vector boson pair production in gluon fusion including interference effects with off-shell Higgs at the LHC
• Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Constraints on anomalous Higgs boson couplings to vector bosons and fermions in its production and decay using the four-lepton final state
• Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production
• Extracting Muon Momentum Scale Corrections for Hadron Collider Experiments
• New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production
• Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width
• Two loop correction to interference in $gg\to ZZ$
• Performance of the CMS high-level trigger during LHC Run 2
• Combined measurement of the Higgs boson mass from the $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$ decay channels with the ATLAS detector using $\sqrt{s}$ = 7, 8 and 13 TeV $pp$ collision data
• Evidence of off-shell Higgs boson production from $ZZ$ leptonic decay channels and constraints on its total width with the ATLAS detector
• Higgs constraints from vector boson fusion and scattering
• Constraining anomalous Higgs boson couplings to virtual photons
• Measurements of inclusive and differential cross sections for the Higgs boson production and decay to four-leptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Cited by in corpus (7)

• Unified Origin of Dirac Neutrino and Asymmetric Dark Matter Masses via a Dirac-Type Leptogenesis
• Search for $\gamma$H production and constraints on the Yukawa couplings of light quarks to the Higgs boson
• Parameter Inference from Final-State Entanglement in Higgs Decays
• Measurement of the Higgs boson total decay width using the H $\to$ WW $\to$ e$\nu \mu \nu$ decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Rare Higgs Decay into a Photon and a Z Boson in Radiatively-Driven Natural Supersymmetry
• Theoretical modeling of QCD radiation in off-shell Higgs production through gluon fusion
• Probing new physics in the Boosted $HH\to b\bar{b}\gamma \gamma$ channel at the LHC