Search for the $b\bar{b}$ decay of the Standard Model Higgs boson in associated $(W/Z)H$ production with the ATLAS detector

Abstract

A search for the $b\bar{b}$ decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used from $pp$ collisions at $\sqrt{s}=7$ and 8 TeV are 4.7 and 20.3 fb${}^{-1}$, respectively. The processes considered are associated $(W/Z)H$ production, where $W\to e\nu /\mu \nu$, $Z\to ee/\mu \mu$ and $Z\to \nu \nu$. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be $\mu =0.52\pm 0.32(stat.)\pm 0.24(syst.)$ for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of $(W/Z)Z$ production with $Z\to b\bar{b}$ in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be $0.74\pm 0.09(stat.)\pm 0.14(syst.)$.

arXiv comment69 pages plus author list + cover pages (93 pages total), 25 figures, 11 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-23/

References in corpus (73)

• 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
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• 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
• A Brief Introduction to PYTHIA 8.1
• Parton distributions for the LHC
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• 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
• MadGraph 5 : Going Beyond
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• Parton distributions with LHC data
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Matching NLO QCD computations and parton shower simulations
• The ATLAS Simulation Infrastructure
• HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension
• The total top quark pair production cross-section at hadron colliders through O(alpha_S^4)
• PHOTOS Monte Carlo: a precision tool for QED corrections in Z and W decays
• Pileup subtraction using jet areas
• QCD matrix elements + parton showers: The NLO case
• TMVA - Toolkit for Multivariate Data Analysis
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Combined Measurement and QCD Analysis of the Inclusive ep Scattering Cross Sections at HERA
• Single-top hadroproduction in association with a W boson
• Observation of a new boson with mass near 125 GeV in pp collisions at sqrt(s) = 7 and 8 TeV
• MCFM for the Tevatron and the LHC
• Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• Evidence for the spin-0 nature of the Higgs boson using ATLAS data
• NNLL resummation for s-channel single top quark production
• Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC
• The PDF4LHC Working Group Interim Recommendations
• Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC
• NNLO QCD corrections to the Higgs-strahlung processes at hadron colliders
• Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV
• Automation of one-loop QCD corrections
• Parton Distributions for LO Generators
• Jet energy measurement and its systematic uncertainty in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Electroweak Radiative Corrections to Associated WH and ZH Production at Hadron Colliders
• Performance of missing transverse momentum reconstruction in proton-proton collisions at 7 TeV with ATLAS
• Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data
• W+W-, WZ and ZZ production in the POWHEG BOX
• Measurement of the Higgs boson mass from the $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$ channels with the ATLAS detector using 25 fb${}^{-1}$ of $pp$ collision data
• Evidence for a particle produced in association with weak bosons and decaying to a bottom-antibottom quark pair in Higgs boson searches at the Tevatron
• Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data
• Evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons
• Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks
• Jet energy resolution in proton-proton collisions at sqrt(s) = 7 TeV recorded in 2010 with the ATLAS detector
• HW/HZ + 0 and 1 jet at NLO with the POWHEG BOX interfaced to GoSam and their merging within MiNLO
• Theory Uncertainties for Higgs and Other Searches Using Jet Bins
• Large N and double scaling limits in two dimensions
• Electroweak corrections to Higgs-strahlung off W/Z bosons at the Tevatron and the LHC with HAWK
• Gluon-induced Higgs-strahlung at next-to-leading order QCD
• W+W-, WZ and ZZ production in the POWHEG BOX V2
• The Monte Carlo Event Generator AcerMC 2.0 with Interfaces to PYTHIA 6.2 and HERWIG 6.5
• Measuring the Higgs Sector
• The RooStats Project
• Higgs Bosons at the Fermilab Tevatron
• Multivariate discrimination and the Higgs + W/Z search
• Gluon-initiated associated production boosts Higgs physics
• W and Z/gamma* boson production in association with a bottom-antibottom pair
• Associated Production of Higgs and Weak Bosons, with H -> b\bar b, at Hadron Colliders
• Muon reconstruction efficiency and momentum resolution of the ATLAS experiment in proton-proton collisions at $\sqrt{s}$=7 TeV in 2010
• Search for the Standard Model Higgs boson produced in association with a vector boson and decaying to a b-quark pair with the ATLAS detector
• Measurement of WZ and ZZ production in pp collisions at sqrt(s) = 8 TeV in final states with b-tagged jets
• Fitting function for asymmetric peaks
• EW corrections to Higgs strahlung at the Tevatron and the LHC with HAWK

Cited by in corpus (114)

• Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV
• 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
• Performance of pile-up mitigation techniques for jets in $pp$ collisions at $\sqrt{s}=8$ TeV using the ATLAS detector
• Measurements of the Higgs boson production and decay rates and coupling strengths using $pp$ collision data at $\sqrt{s}=7$ and $8$ TeV in the ATLAS experiment
• Applying Exclusion Likelihoods from LHC Searches to Extended Higgs Sectors
• Observation of $H\to b\bar{b}$ decays and $VH$ production with the ATLAS detector
• Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
• Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector
• Search for an additional, heavy Higgs boson in the $H\to ZZ$ decay channel at $\sqrt{s}$ = 8 TeV in $pp$ collision data with the ATLAS detector
• Standard Model-Axion-Seesaw-Higgs Portal Inflation. Five problems of particle physics and cosmology solved in one stroke
• Search for the Standard Model Higgs boson produced in association with top quarks and decaying into $b\bar{b}$ in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Disentangling a dynamical Higgs
• Searches for Higgs boson pair production in the $hh\to bb\tau \tau ,\gamma \gamma WW\ast ,\gamma \gamma bb,bbbb$ channels with the ATLAS detector
• Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 2: $m_H=125$ GeV
• Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 1: $m_h=125$ GeV
• Higgs boson pair production in the D=6 extension of the SM
• Constraining anomalous Higgs boson couplings to the heavy flavor fermions using matrix element techniques
• Evidence for the $H\to b\bar{b}$ decay with the ATLAS detector
• Search for a CP-odd Higgs boson decaying to $Zh$ in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Higgs $\to \mu \tau$ in Abelian and Non-Abelian Flavor Symmetry Models
• Measurements of $WH$ and $ZH$ production in the $H\to b\bar{b}$ decay channel in $pp$ collisions at 13 TeV with the ATLAS detector
• Evidence for the Higgs boson decay to a bottom quark-antiquark pair
• Flavour Changing Higgs Couplings in a Class of Two Higgs Doublet Models
• Current and future constraints on Higgs couplings in the nonlinear Effective Theory
• Search for charged Higgs bosons decaying into a top quark and a bottom quark at $\sqrt{s}$=13 TeV with the ATLAS detector
• The CMS statistical analysis and combination tool: COMBINE
• Global constraints on anomalous triple gauge couplings in effective field theory approach
• Lab-frame observables for probing the top-Higgs interaction
• Constraining the Charm Yukawa and Higgs-quark Coupling Universality
• Fundamental Composite Electroweak Dynamics: Status at the LHC
• NNLOPS accurate associated HW production
• Search for neutral resonances decaying into a Z boson and a pair of b jets or tau leptons
• Performance of algorithms that reconstruct missing transverse momentum in $\sqrt{s}=$ 8 TeV proton-proton collisions in the ATLAS detector
• Search for a new resonance decaying to a $W$ or $Z$ boson and a Higgs boson in the $\ell \ell /\ell \nu /\nu \nu +b\bar{b}$ final states with the ATLAS Detector
• Prospects for measuring the Higgs coupling to light quarks
• Boosting Higgs pair production in the $b\bar{b}b\bar{b}$ final state with multivariate techniques
• Evidence for single top-quark production in the $s$-channel in proton-proton collisions at $\sqrt{s}=$8 TeV with the ATLAS detector using the Matrix Element Method
• Search for a Charged Higgs Boson Produced in the Vector-boson Fusion Mode with Decay $H^{\pm }\to W^{\pm }Z$ using $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Experiment
• Measurements of jet multiplicity and differential production cross sections of Z + jets events in proton-proton collisions at sqrt(s) = 7 TeV
• Effective field theory approach to LHC Higgs data
• Search for the standard model Higgs boson produced through vector boson fusion and decaying to b bbar
• Light quark Yukawa couplings from Higgs kinematics
• Full parameter scan of the Zee model: exploring Higgs lepton flavor violation
• Search for Dark Matter Produced in Association with a Higgs Boson Decaying to $b\bar{b}$ using 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS Detector
• Study of $(W/Z)H$ production and Higgs boson couplings using $H\to W{W}^{\ast }$ decays with the ATLAS detector
• Is the Higgs Mechanism of Fermion Mass Generation a Fact? A Yukawa-less First-Two-Generation Model
• Post-ACME2013 CP-violation in Higgs Physics and Electroweak Baryogenesis
• Measurement of the associated production of a Higgs boson decaying into $b$-quarks with a vector boson at high transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• NNLO QCD corrections to associated $WH$ production and $H\to b\bar{b}$ decay
• Global fits in the Georgi-Machacek model
• Search for dark matter in association with a Higgs boson decaying to $b$-quarks in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Direct constraint on the Higgs-charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector
• Search for invisible decays of the Higgs boson produced in association with a hadronically decaying vector boson in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Three Loop Neutrino Model with Isolated $k^{\pm \pm }$
• LHC 750 GeV Diphoton excess in a radiative seesaw model
• Multimediator models for the galactic center gamma ray excess
• Pseudo-observables in electroweak Higgs production
• QCD radiative corrections for $h\to b\bar{b}$ in the Standard Model Dimension-6 EFT
• Revealing Compressed Stops Using High-Momentum Recoils
• Higgs-Strahlung: Merging the NLO Drell-Yan and Loop-Induced 0+1 jet Multiplicities
• Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models
• The role of MSSM heavy Higgs production in the self coupling measurement of the 125 GeV Higgs boson at the LHC
• Status of MSSM Higgs Sector using Global Analysis and Direct Search Bounds, and Future Prospects at the HL-LHC
• Measurement of the transverse momentum spectrum of the Higgs boson produced in pp collisions at sqrt(s) = 8 TeV using H to WW decays
• Low-mass fermiophobic charged Higgs phenomenology in two-Higgs-doublet models
• Extra Neutral Scalars with Vector-like Fermions at the LHC
• Constraining the Higgs Boson Coupling to Light Quarks in the $H\to ZZ$ Final States
• s-channel Single Top Quark Production and Decay at NNLO in QCD
• New constraints and discovery potential for Higgs to Higgs cascade decays through vectorlike leptons
• Resolving Boosted Jets with XCone
• The correlation matrix of Higgs rates at the LHC
• Updated constraints on Georgi-Machacek model, and its electroweak phase transition and associated gravitational waves
• Search for the Standard Model Higgs boson produced by vector-boson fusion in 8 TeV $pp$ collisions and decaying to bottom quarks with the ATLAS detector
• Effective Higgs Lagrangian and Constraints on Higgs Couplings
• Updated global fit of the aligned two-Higgs-doublet model with heavy scalars
• Measurement of associated Z + charm production in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• Probing the NMSSM via Higgs boson signatures from stop cascade decays at the LHC
• Boosted Higgs $\to b\bar{b}$ in vector-boson associated production at 14 TeV
• Decay of the Higgs boson to ${\tau }^{-}{\tau }^{+}$ and non-Hermiticity of the Yukawa interaction
• Vacuum stability bounds on Higgs coupling deviations
• Probing Higgs-radion mixing in warped models through complementary searches at the LHC and the ILC
• Search for dark matter produced in association with a dark Higgs boson decaying into $W^{\pm }{W}^{\mp }$ or $ZZ$ in fully hadronic final states from $\sqrt{s}=13$ TeV $pp$ collisions recorded with the ATLAS detector
• Future prospects of mass-degenerate Higgs bosons in the $CP$-conserving two-Higgs-doublet model
• Further study of the global minimum constraint on the two-Higgs-doublet models: LHC searches for heavy Higgs bosons
• Constraining the Higgs-Dilaton with LHC and Dark Matter Searches
• Search for the Standard Model Higgs boson produced in association with a vector boson and decaying into a tau pair in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Light stop in the MSSM after LHC Run 1
• Tevatron Constraints on Models of the Higgs Boson with Exotic Spin and Parity Using Decays to Bottom-Antibottom Quark Pairs
• Least Fine-Tuned U(1) Extended SSM
• Lepton flavor violating Higgs decay at $e^{+}{e}^{-}$ colliders
• Comparing Point Cloud Strategies for Collider Event Classification
• Dimension-six operators in Higgs pair production via vector-boson fusion at the LHC
• The Hunt for the Rest of the Higgs Bosons
• Higgs and Z boson associated production via gluon fusion in the SM and the 2HDM
• Production and decays of a light ${\varphi }^0$ in the LRTH model under the LHC Higgs data
• Measurement of the $WW$ and $WZ$ production cross section using final states with a charged lepton and heavy-flavor jets in the full CDF Run II data set
• Dark Matter in Leptophilic Higgs Models After the LHC Run-I
• Testing Higgs boson scenarios in the phenomenological NMSSM
• Higgs couplings and BSM physics: Run I Legacy constraints
• Left-right non-linear dynamical Higgs
• Status of the 98 - 125 GeV Higgs scenario with updated LHC-8 data
• Review of Physics Results from the Tevatron: Higgs Boson Physics
• Experimental prospects for C, P, T, CP, and CPT tests
• Flavor from the Electroweak Scale
• Efficiency Parameterization with Neural Networks
• Constraining the Higgs couplings to up and down quarks using production kinematics at the CERN Large Hadron Collider
• Revealing mass-degenerate states in Higgs boson signals
• Identification of a bottom quark-antiquark pair in a single jet with high transverse momentum and its application
• Custodial Vector Model
• Search for dark matter produced in association with a dark Higgs boson in the $b\bar{b}$ final state using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Fermionic decays of SM Higgs
• Exploring anomalous $hb\bar{b}$ and $hb\bar{b}\gamma$ couplings in the context of the LHC and an $e^{+}{e}^{-}$ collider
• ATLAS SM VH(bb) Run-2 Search
• Higgs bosons in supersymmetric model with CP-violating potential