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Inclusive search for highly boosted Higgs bosons decaying to bottom quark-antiquark pairs in proton-proton collisions at $\sqrt{s} =$ 13 TeV
High Energy Physics - Experiment · Submitted 23 Jun 2020
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim For a Higgs boson mass of 125 GeV, an excess of events above the background assuming no Higgs boson production is observed with a local significance of 2.5 standard deviations ($\sigma$), while the expectation is 0.7.
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The abstract, sentence by sentence
A search for standard model Higgs bosons (H) produced with transverse momentum ($p_\mathrm{T}$) greater than 450 GeV and decaying to bottom quark-antiquark pairs ($\mathrm{b\bar{b}}$) is performed using proton-proton collision data collected by the CMS experiment at the LHC at $\sqrt{s} =$ 13 TeV. The data sample corresponds to an integrated luminosity of 137 fb$^{-1}$. The search is inclusive in the Higgs boson production mode. Highly Lorentz-boosted Higgs bosons decaying to $\mathrm{b\bar{b}}$ are reconstructed as single large-radius jets, and are identified using jet substructure and a dedicated b tagging technique based on a deep neural network. The method is validated with Z $\to$ $\mathrm{b\bar{b}}$ decays. For a Higgs boson mass of 125 GeV, an excess of events above the background assuming no Higgs boson production is observed with a local significance of 2.5 standard deviations ($\sigma$), while the expectation is 0.7. The corresponding signal strength and local significance with respect to the standard model expectation are $\mu_\mathrm{H}$ $=$ 3.7 $\pm$ 1.2 (stat) $^{+0.8}_{-0.7}$ (syst) $^{+0.8}_{-0.5}$ (theo) and 1.9 $\sigma$. Additionally, an unfolded differential cross section as a function of Higgs boson $p_\mathrm{T}$ for the gluon fusion production mode is presented, assuming the other production modes occur at the expected rates.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | A search for standard model Higgs bosons (H) produced with transverse momentum ($p_\mathrm{T}$) greater than 450 GeV and decaying to bottom quark-antiquark pairs ($\mathrm{b\bar{b}}$) is performed using proton-proton collision data collected by the CMS experiment at the LHC at $\sqrt{s} =$ 13 TeV. | contribution 0.99 | 0.96 | 0.03 | asserted 0.99 |
| s1 | The data sample corresponds to an integrated luminosity of 137 fb$^{-1}$. | method 0.97 | 0.75 | 0.01 | asserted 1.00 |
| s2 | The search is inclusive in the Higgs boson production mode. | method 0.74 | 0.81 | 0.02 | asserted 1.00 |
| s3 | Highly Lorentz-boosted Higgs bosons decaying to $\mathrm{b\bar{b}}$ are reconstructed as single large-radius jets, and are identified using jet substructure and a dedicated b tagging technique based on a deep neural network. | method 1.00 | 0.93 | 0.03 | asserted 1.00 |
| s4 | The method is validated with Z $\to$ $\mathrm{b\bar{b}}$ decays. | method 0.99 | 0.89 | 0.02 | asserted 1.00 |
| s5 | For a Higgs boson mass of 125 GeV, an excess of events above the background assuming no Higgs boson production is observed with a local significance of 2.5 standard deviations ($\sigma$), while the expectation is 0.7. | result 1.00 | 0.95 | 0.29 | asserted 1.00 |
| s6 | The corresponding signal strength and local significance with respect to the standard model expectation are $\mu_\mathrm{H}$ $=$ 3.7 $\pm$ 1.2 (stat) $^{+0.8}_{-0.7}$ (syst) $^{+0.8}_{-0.5}$ (theo) and 1.9 $\sigma$. | result 1.00 | 0.96 | 0.27 | asserted 1.00 |
| s7 | Additionally, an unfolded differential cross section as a function of Higgs boson $p_\mathrm{T}$ for the gluon fusion production mode is presented, assuming the other production modes occur at the expected rates. | result 0.79 | 0.94 | 0.04 | asserted 0.99 |
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The paper
Original abstract
A search for standard model Higgs bosons (H) produced with transverse momentum ($p_\mathrm{T}$) greater than 450 GeV and decaying to bottom quark-antiquark pairs ($\mathrm{b\bar{b}}$) is performed using proton-proton collision data collected by the CMS experiment at the LHC at $\sqrt{s} =$ 13 TeV. The data sample corresponds to an integrated luminosity of 137 fb$^{-1}$. The search is inclusive in the Higgs boson production mode. Highly Lorentz-boosted Higgs bosons decaying to $\mathrm{b\bar{b}}$ are reconstructed as single large-radius jets, and are identified using jet substructure and a dedicated b tagging technique based on a deep neural network. The method is validated with Z $\to$ $\mathrm{b\bar{b}}$ decays. For a Higgs boson mass of 125 GeV, an excess of events above the background assuming no Higgs boson production is observed with a local significance of 2.5 standard deviations ($\sigma$), while the expectation is 0.7. The corresponding signal strength and local significance with respect to the standard model expectation are $\mu_\mathrm{H}$ $=$ 3.7 $\pm$ 1.2 (stat) $^{+0.8}_{-0.7}$ (syst) $^{+0.8}_{-0.5}$ (theo) and 1.9 $\sigma$. Additionally, an unfolded differential cross section as a function of Higgs boson $p_\mathrm{T}$ for the gluon fusion production mode is presented, assuming the other production modes occur at the expected rates.
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References
How the literature uses it
47 arXiv papers cite this in 56 sentences
Papers citing it · 34 sentences without a confident label
Uses its method or tool 4 papers
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The QCD multijet background is estimated from data in the QCD CR using the parametric alphabet method, following the strategy employed in the Run 2 analysis in the merged topology [ref] , as well as previous searches [ref] .
Improved results on Higgs boson pair production in the 4b final state · The second approach: background estimation using a parametric alphabet method · 0.99
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The QCD multijet background in the SRs is estimated using the data in the CRs and fitted TFs [ref] .
Combination of searches for nonresonant Higgs boson pair production in proton-proton collisions at $\sqrt{s}$= 13 TeV · HH to bbbb boosted · 0.95
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The QCD multijet background in the SRs is estimated using the distribution of the -subleading jet, assuming a constant transfer factor [ref] .
Search for nonresonant pair production of highly energetic Higgs bosons decaying to bottom quarks · Introduction · 0.84
Uses its data or values 4 papers
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Fit input We start by fitting the Higgs transverse momentum spectrum to the current available data presented by ATLAS [ref] and CMS [ref] for the differential Higgs cross section in different $p_T^H$ regions.
Impact of SMEFT renormalisation group running on Higgs production at the LHC · Constraints on Wilson coefficients · 1.00
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On the other hand, the CMS input for the Run 2 data on signal strengths includes the decay channels into $γγ$ [ref] , $ZZ→4ℓ$ [ref] , $W^±W^∓→ℓνℓν$ [ref] , $Zγ$ [ref] , $τ^+τ^-$ [ref] , $bb̅$ [ref] , $μ^+μ^-$ [ref] , multileptons with ttH/tH [ref] , and invisible particles [ref] .
Higgs Boson Precision Analysis of the Full LHC Run 1 and Run 2 Data · Higgs signal Strength: Data and Overall Results · 1.00
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We assume the Higgs boson signal strength in the $b$-quark channel [ref] as a reference point and apply the corresponding limits to other channels; * Suppressed scalar mediated FCNC [ref] ; * CP properties of the SM-like Higgs boson [ref] ; * Upper limit on the decay of the $t$-quark into lighter charged scalars when decays are not kinematically suppressed [ref] ; The additional checks are performed only in case of C-V as those demand input from the scalar sector; to be more precise, one needs to know how the scalar mass eigenstates look like to determine the interaction strength of the SM-like Higgs boson with the fermions.
Complex $S_3$-symmetric 3HDM · Numerical studies · 0.97
Compares with it 1 paper
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As a result, the analysis reported here provides not only the first measurement of production via VBF at high $$, but also the most precise measurement of ggF Higgs boson production in this regime, superseding the measurement in Ref. [ref] .
Measurement of boosted Higgs bosons produced via vector boson fusion or gluon fusion in the H $\to$ $\mathrm{b\bar{b}}$ decay mode using LHC proton-proton collision data at $\sqrt{s}$ = 13 TeV · Introduction · 0.92
Cites it as background 11 papers
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Given the relevance of this matter, several mass decorrelation methods have been proposed [ref] (see [ref] for a comparison of different methods and [ref] for a review) and subsequently applied in a variety of experimental analyses [ref] .
Mass Unspecific Supervised Tagging (MUST) for boosted jets · Introduction · 0.89
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Existing searches in the boosted $→$ channel from the ATLAS and CMS experiments have focused on inclusive Higgs boson production [ref] or associated production with a vector boson [ref] .
Measurement of boosted Higgs bosons produced via vector boson fusion or gluon fusion in the H $\to$ $\mathrm{b\bar{b}}$ decay mode using LHC proton-proton collision data at $\sqrt{s}$ = 13 TeV · Introduction · 0.88
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The substructure of boosted particle decays [ref] allows powerful new approaches to be utilised in searches for physics beyond the Standard Model (BSM) [ref] at high energy scales, and has enabled novel measurements of Standard Model processes [ref] .
Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton-proton collisions · Introduction · 0.98
What it cites · 37 sentences without a confident label
Uses the method or tool of 44 papers
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Upper limits at 95% using the criterion [ref] are obtained using asymptotic formulae [ref] .
Confidence Level Computation for Combining Searches with Small Statistics · Results · 1.00
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Upper limits at 95% using the criterion [ref] are obtained using asymptotic formulae [ref] .
Asymptotic formulae for likelihood-based tests of new physics · Results · 1.00
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In contrast with the previous CMS result, the Higgs boson spectrum from production is modeled with the generator [ref] , which includes effects of the finite top quark mass effects to higher order in QCD.
Merging H/W/Z + 0 and 1 jet at NLO with no merging scale: a path to parton shower + NNLO matching · Introduction · 0.93
Uses data or values from 5 papers
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Recently, there has been considerable interest in the measurement of Higgs bosons produced with high transverse momentum, , where measurements in the $()$ decay channel have better sensitivity than traditional channels because of its large branching fraction, $ℬ(→)= 58.1%$ [ref] .
Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector · Introduction · 0.93
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The EW NLO corrections are taken from theoretical calculations in Ref. [ref] .
NLO QCD+EW automation and precise predictions for V+multijet production · Simulated samples · 0.88
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The EW NLO corrections are taken from theoretical calculations in Ref. [ref] .
NLO QCD+EW predictions for V+jets including off-shell vector-boson decays and multijet merging · Simulated samples · 0.88
Compares with 6 papers
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In particular, the number of signal events predicted by in the fiducial region of the analysis is approximately a factor of two smaller than that of Ref. [ref] , which is reflected in the fitted $μ_$ values and their uncertainties.
Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair · Results · 0.93
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The primary results using the spectrum from [ref] are shown, alongside results using the spectrum from Ref. [ref] for ease of comparison.
Precise predictions for boosted Higgs production · Results · 0.89
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The primary results using the spectrum from [ref] are shown, alongside results using the spectrum from Ref. [ref] for ease of comparison.
Merging H/W/Z + 0 and 1 jet at NLO with no merging scale: a path to parton shower + NNLO matching · Results · 0.89
Cites as background 3 papers
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The observation of a new boson consistent with the standard model (SM) Higgs boson () and the subsequent measurements of its properties [ref] have advanced the understanding of electroweak (EW) symmetry breaking and the origin of the mass of elementary particles [ref] .
Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC · Introduction · 0.98
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The observation of a new boson consistent with the standard model (SM) Higgs boson () and the subsequent measurements of its properties [ref] have advanced the understanding of electroweak (EW) symmetry breaking and the origin of the mass of elementary particles [ref] .
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC · Introduction · 0.98
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The observation of a new boson consistent with the standard model (SM) Higgs boson () and the subsequent measurements of its properties [ref] have advanced the understanding of electroweak (EW) symmetry breaking and the origin of the mass of elementary particles [ref] .
Observation of a new boson with mass near 125 GeV in pp collisions at sqrt(s) = 7 and 8 TeV · Introduction · 0.98
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