Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at sqrt(s) = 7 TeV with the ATLAS detector at the LHC

Abstract

A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb-1 to 4.9 fb-1 of pp collisions collected at sqrt(s) = 7 TeV is presented. The Higgs boson mass ranges 112.9-115.5 GeV, 131-238 GeV and 251-466 GeV are excluded at the 95% confidence level (CL), while the range 124-519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around mH ~ 126 GeV with a local significance of 3.5 standard deviations (sigma). The local significance of H -> gamma gamma, H -> ZZ(*) -> lll'l' and H -> WW(*) -> lvl'v, the three most sensitive channels in this mass range, are 2.8 sigma, 2.1 sigma and 1.4 sigma, respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110-600 GeV is estimated to be ~1.4% or, equivalently 2.2 sigma.

8 pages plus author list (22 pages total), 4 figures, author list corrected, matches published version in PLB

References in corpus (9)

• Parton distributions for the LHC
• New parton distributions for collider physics
• The PDF4LHC Working Group Interim Recommendations
• NLO Electroweak Corrections to Higgs Boson Production at Hadron Colliders
• VBFNLO: A parton level Monte Carlo for processes with electroweak bosons
• Electroweak and QCD corrections to Higgs production via vector-boson fusion at the LHC
• Strong and electroweak corrections to the production of Higgs+2jets via weak interactions at the LHC
• Precise predictions for the Higgs-boson decay H -> W W/Z Z -> 4 leptons
• Higgs Pseudo-Observables, Second Riemann Sheet and All That

Cited by in corpus (98)

• Matter and Antimatter in the Universe
• HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era
• Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
• Dark Matter Evidence, Particle Physics Candidates and Detection Methods
• FlexibleSUSY -- A spectrum generator generator for supersymmetric models
• The lifetime of the electroweak vacuum and sensitivity to Planck scale physics
• Combined search for the Standard Model Higgs boson in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Quantitative constraints on the gluon distribution function in the proton from collider isolated-photon data
• Dark matter constraints from box-shaped gamma-ray features
• Implications of a Light Higgs in Composite Models
• Measurement of the W Boson Mass with the D0 Detector
• Top mass determination, Higgs inflation, and vacuum stability
• MSSM Higgs Bosons at The LHC
• The 125 GeV Higgs in the NMSSM in light of LHC results and astrophysics constraints
• LHC Signatures of Two-Higgs-Doublets with Fourth Family
• Compactified String Theories -- Generic Predictions for Particle Physics
• Search for the Standard Model Higgs boson in the H -> WW(*) -> l nu l nu decay mode with 4.7 /fb of ATLAS data at sqrt(s) = 7 TeV
• Early discovery of top partners and test of the Higgs nature
• Cosmic Coincidence and Asymmetric Dark Matter in a Stueckelberg Extension
• Many faces of low mass neutralino dark matter in the unconstrained MSSM, LHC data and new signals
• Top Quark Physics at the LHC: A Review of the First Two Years
• Particle Physics from Almost Commutative Spacetimes
• Light Neutralino Dark Matter in the pMSSM: Implications of LEP, LHC and Dark Matter Searches on SUSY Particle Spectra
• Constraining Top partner and Naturalness at the LHC and TLEP
• Phenomenology of the minimal supersymmetric $U(1{)}_{B-L}\times U(1{)}_R$ extension of the standard model
• Inverted sfermion mass hierarchy and the Higgs boson mass in the MSSM
• Triplet-Singlet Extension of the MSSM with a 125 Gev Higgs and Dark Matter
• Asymptotically flat black holes sourced by a massless scalar field
• WIMP Dark Matter from Gravitino Decays and Leptogenesis
• On Higgs Decays, Baryon Number Violation, and SUSY at the LHC
• Gluino Decay as a Probe of High Scale Supersymmetry Breaking
• Non-Abelian dynamics in the resonant decay of the Higgs after inflation
• Unbroken $SU(2)$ at a 100 TeV collider
• Evaluation of measurement accuracies of the Higgs boson branching fractions in the International Linear Collider
• Enhancement of Proton Decay Rates in Supersymmetric SU(5) Grand Unified Models
• Measurement of tau polarization in W->taunu decays with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
• Constraints on invisible Higgs decay in MSSM in the light of diphoton rates from the LHC
• Yukawa unification in SUSY SO(10) in light of the LHC Higgs data
• Recent Developments in HiggsBounds and a Preview of HiggsSignals
• New Physics backgrounds to the H -> WW search at the LHC?
• Doubly charged heavy leptons at LHC via contact interactions
• Supersymmetry phenomenology beyond the MSSM after 5/fb of LHC data
• Implications of gauge kinetic mixing on Z' and slepton production at the LHC
• $SU(2)\otimes SU(2)$ Gauge Extensions of the MSSM Revisited
• Higgs couplings and Naturalness in the littlest Higgs model with T-parity at the LHC and TLEP
• LHC and dark matter signals of Z' bosons
• Improved resummation prediction on Higgs boson production at hadron colliders
• Constraints on 3-3-1 models with electroweak Z pole observables and Z' search at LHC
• Radiative neutrino mass, dark matter and electroweak baryogenesis from the supersymmetric gauge theory with confinement
• Walking techni-pions at LHC
• Implications on the Heavy CP-even Higgs Boson from Current Higgs Data
• Probing the Supersymmetric Inflaton and Dark Matter link via the CMB, LHC and XENON1T experiments
• Magic Messengers in Gauge Mediation and signal for 125 GeV boosted Higgs boson
• Implications of QCD radiative corrections on high-pT Higgs searches
• Large mass splittings for fourth generation fermions allowed by LHC Higgs exclusion
• Extending the Matrix Element Method to Next-to-Leading Order
• Higgs decay into photons through a spin-2 loop
• Explaining The Muon $g-2$ Anomaly and New CDF II W-Boson Mass in the Framework of (Extra)Ordinary Gauge Mediation
• A Multi-Axis Best Fit to the Collider Supersymmetry Search: The Aroma of Stops and Gluinos at the \sqrt{s} = 7 TeV LHC
• Comparison of neutralino and sneutrino dark matter in a model with spontaneous CP violation
• Limit setting procedures and theoretical uncertainties in Higgs boson searches
• Chanel No5 (fb^-1): The Sweet Fragrance of SUSY
• Higgs Mass and Gravity Waves in Standard Model False Vacuum Inflation
• Alchemical Inflation: inflaton turns into Higgs
• Brief history for the search and discovery of the Higgs particle - A personal perspective
• Search for the standard model Higgs boson produced in association with a $W^{\pm }$ boson with 7.5 fb${}^{-1}$ integrated luminosity at CDF
• Fermiophobic Higgs boson and supersymmetry
• Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints
• Supersymmetric type-III seesaw: lepton flavour violation and LHC phenomenology
• Various Models Mimicking the SM Higgs Boson
• Standard Model beta-functions to three-loop order and vacuum stability
• Interplay between the muon $g-2$ anomaly and the PTA nHZ gravitational waves from domain walls in next-to minimal supersymmetric standard model
• Improved vacuum stability in a five dimensional model
• Renormalisation group invariants and sum rules: fast diagnostic tools for probing high-scale physics
• Baryogenesis and Asymmetric Dark Matter from The Left-Right Mirror Symmetric Model
• Higgs at ILC in Universal Extra Dimensions in Light of Recent LHC Data
• The Dark Components of the Universe Are Slowly Clarified
• Characterizing simplified models for heavy Higgs decays to supersymmetric particles
• Issues with vacuum energy as the origin of dark energy
• New Resonances at LHC are possible. Multiple Point Principle and New Bound States in the Standard Model
• F(750), We Miss You, as Bound State of 6 Top and 6 Anti top
• Has A 125 GeV Pseudoscalar Resonance Been Observed at the LHC?
• Probing dark matter and CMSSM with same-sign dilepton searches at the LHC
• Production of multiple charged Higgs bosons in 3-3-1 models
• Primordial Black Holes and Higgs Vacuum Decay
• Light dark matter around 100 GeV from the inert doublet model
• A Brief History for the Search and Discovery of the Higgs Particle: A Personal Perspective
• Constraining the light Higgs bosons in the GNMSSM with recent Higgs data
• Hadronic and radiative decays of the tau lepton
• Triplet fermion WIMP dark matter in the general supersymmetric Georgi-Machacek model
• Natural solution of SUSY $\mu$ problem from modulus stabilization in modular flavor model
• Finding excesses in model parameter space
• Constraints from New CDF II W-Boson Mass On Top-Bottom Seesaw and the TopFlavor Models
• The Composite Particles Model (CPM), Vacuum Structure and ~ 125 GeV Higgs Mass
• Probing the Chern-Simons Portal at the HL-LHC through Displaced Vertices from W Boson Associated Production
• An isosinglet W' at the LHC: updated bounds from direct searches
• Positive definiteness constraints of effective scalar potential in Georgi-Machacek Model
• Observation and Measurement of a Standard Model Higgs Boson-like Diphoton Resonance with the CMS Detector