Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at $\sqrt{s}=$ 8 and 13 TeV

Abstract

The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample corresponds to an integrated luminosity of 19.7 (35.9) fb${}^{-1}$ at $\sqrt{s}=$8 (13) TeV. The expected and observed 95% confidence level upper limits on the product of the cross section and branching fraction into two photons are presented. The observed upper limit for the 2012 (2016) data set ranges from 129 (161) fb to 31 (26) fb. The statistical combination of the results from the analyses of the two data sets in the common mass range between 80 and 110 GeV yields an upper limit on the product of the cross section and branching fraction, normalized to that for a standard model-like Higgs boson, ranging from 0.7 to 0.2, with two notable exceptions: one in the region around the Z boson peak, where the limit rises to 1.1, which may be due to the presence of Drell-Yan dielectron production where electrons could be misidentified as isolated photons, and a second due to an observed excess with respect to the standard model prediction, which is maximal for a mass hypothesis of 95.3 GeV with a local (global) significance of 2.8 (1.3) standard deviations.

arXiv commentReplaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-17-013 (CMS Public Pages)

References in corpus (51)

• 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
• A Brief Introduction to PYTHIA 8.1
• 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
• Parton distributions for the LHC Run II
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• Search for the Standard Model Higgs Boson at LEP
• Confidence Level Computation for Combining Searches with Small Statistics
• PDF4LHC recommendations for LHC Run II
• The Next-to-Minimal Supersymmetric Standard Model
• Particle-flow reconstruction and global event description with the CMS detector
• The CMS trigger system
• 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
• The Next-to-Minimal Supersymmetric extension of the Standard Model reviewed
• Observation of the diphoton decay of the Higgs boson and measurement of its properties
• Trial factors for the look elsewhere effect in high energy physics
• NLO Higgs boson production via vector-boson fusion matched with shower in POWHEG
• NLO Higgs boson production via gluon fusion matched with shower in POWHEG
• Measurement of the Inclusive W and Z Production Cross Sections in pp Collisions at sqrt(s) = 7 TeV
• Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV
• Resolving the Constrained Minimal and Next-to-Minimal Supersymmetric Standard Models
• Particle Spectrum in Supersymmetric Models with a Gauge Singlet
• Energy calibration and resolution of the CMS electromagnetic calorimeter in pp collisions at sqrt(s) = 7 TeV
• Search for Scalar Diphoton Resonances in the Mass Range $65-600$ GeV with the ATLAS Detector in $pp$ Collision Data at $\sqrt{s}$ = 8 $TeV$
• 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
• Neutralinos and Higgs Bosons in the Next-To-Minimal Supersymmetric Standard Model
• An Unbiased Hessian Representation for Monte Carlo PDFs
• Study of the underlying event at forward rapidity in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV
• The diphoton signal of the light Higgs boson in Natural NMSSM
• HIGGS PHENOMENOLOGY OF THE SUPERSYMMETRIC MODEL WITH A GAUGE SINGLET
• Handling uncertainties in background shapes: the discrete profiling method
• Measurements of Higgs boson properties in the diphoton decay channel in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Unification Constraints in the Next-to-Minimal Supersymmetric Standard Model
• Two Higgs doublet models for the LHC Higgs boson data at $\sqrt{s}=$ 7 and 8 TeV
• Discovery Prospects of a Light Scalar in the NMSSM
• Constraining Type II 2HDM in Light of LHC Higgs Searches
• Phenomenology of supersymmetric models with a singlet
• NLO corrections merged with parton showers for Z+2 jets production using the POWHEG method
• Study of diphoton decays of the lightest scalar Higgs boson in the Next-to-Minimal Supersymmetric Standard Model
• Diphoton Signal of light pseudoscalar in NMSSM at the LHC

Cited by in corpus (60)

• Feebly-Interacting Particles:FIPs 2020 Workshop Report
• HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era
• Dark Matter through the Higgs portal
• A 96 GeV Higgs Boson in the N2HDM
• Baryogenesis and gravity waves from a UV-completed electroweak phase transition
• Pseudo-Goldstone dark matter confronts cosmic ray and collider anomalies
• The 96 GeV Diphoton Excess in the Seesaw Extensions of the Natural NMSSM
• Possible indications for new Higgs bosons in the reach of the LHC: N2HDM and NMSSM interpretations
• The CMS di-photon excess at 95 GeV in view of the LHC Run 2 results
• The 95.4 GeV di-photon excess at ATLAS and CMS
• GUT Physics in the era of the LHC
• Light Higgs bosons in the general NMSSM
• Excesses in the low-mass Higgs-boson search and the W-boson mass measurement
• The Weak Scale as a Trigger
• $SU(2{)}_L$ triplet scalar as the origin of the 95 GeV excess?
• Scrutinizing the 95-100 GeV di-tau excess in the top associated process
• Type-X two Higgs doublet model in light of the muon $\mathbf{g}-2$: confronting Higgs and collider data
• Explaining the 96 GeV Di-photon Anomaly in a Generic 2HDM Type-III
• Two-Higgs-doublet models in light of current experiments: a brief review
• Scotogenic $U(1{)}_{L_{\mu }-L_{\tau }}$ origin of $(g-2{)}_{\mu }$, W-mass anomaly and 95 GeV excess
• Asymmetric di-Higgs signals of the next-to-minimal 2HDM with a $U(1)$ symmetry
• A 95 GeV Higgs Boson in the Georgi-Machacek Model
• A 96 GeV scalar tagged to dark matter models
• The 95 GeV Excess in the Georgi-Machacek Model: Single or Twin Peak Resonance
• The scale invariant scotogenic model: CDF-II $W$-boson mass and the 95 GeV excesses
• Discussing 125 GeV and 95 GeV excess in Light Radion Model
• Chasing the two-Higgs doublet model in the di-Higgs production
• Phenomenology of a Supersymmetric Model Inspired by Inflation
• Same-sign Charged Higgs Pair Production in bosonic decay channels at the HL-LHC and HE-LHC
• 95 GeV excess in a $CP$-violating $\mu$-from-$\nu$ SSM
• Searching for axion-like particles with data scouting at ATLAS and CMS
• Superposition of CP-Even and CP-Odd Higgs Resonances: Explaining the 95 GeV Excesses within a Two-Higgs Doublet Model
• Constraining the Georgi-Machacek Model with a Light Higgs
• 95 GeV light Higgs in the top-pair-associated diphoton channel at the LHC in the minimal dilaton model
• A short overview on low mass scalars at future lepton colliders
• Search for a lighter neutral custodial fiveplet scalar in the Georgi-Machacek model
• Custodial Symmetry Breaking and Higgs Signatures at the LHC
• Tera-Zooming in on light (composite) axion-like particles
• Is there a (Pseudo)Scalar at 95 GeV?
• Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints
• Future lepton collider prospects for a ubiquitous composite pseudo-scalar
• Detecting new signals under background mismodelling
• Heavy Neutrino Searches via Same-sign Lepton Pairs at the Higgs Factory
• Indications for extra scalars at LHC? -- BSM physics at future $e^{+}{e}^{-}$ colliders
• Exploring Potential Higgs Resonances at 650 GeV and 95 GeV in the 2HDM Type III
• The hidden side of scalar-triplet models with spontaneous CP violation
• Probing a ${\mathrm{Z}}^{\prime }$ with non-universal fermion couplings through top quark fusion, decays to bottom quarks, and machine learning techniques
• Discovery Potential of Future Electron-Positron Colliders for a 95 GeV Scalar
• The 28 GeV Dimuon Excess in Lepton Specific 2HDM
• Robustness of ARS Leptogenesis in Scalar Extensions
• Reconciling Higgs physics and pseudo-Nambu-Goldstone dark matter in the S2HDM using a genetic algorithm
• Probing Type-I 2HDM light Higgs in the top-pair-associated diphoton channel
• Light dark matter around 100 GeV from the inert doublet model
• Review of a light NMSSM pseudoscalar Higgs state production at the LHC
• Summary of recent progress in searches for additional Higgs bosons
• Oblique corrections when $m_W\ne m_Z\cos {\theta }_W$ at tree level
• An N2HDM Solution for the possible 96 GeV Excess
• Particle-level transformers for 95 GeV Higgs boson searches at future $e^{+}{e}^{-}$ Higgs factories
• Interpreting the 650 GeV and 95 GeV Higgs anomalies in the next-to-two-Higgs-doublet model
• Searches for heavy Higgs bosons in the framework of 2HDM model