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Jet Flavour Classification Using DeepJet
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Jet flavour classification is of paramount importance for a broad range of applications in modern-day high-energy-physics experiments, particularly at the LHC. In this paper we propose a novel architecture for this task that exploits modern deep learning techniques. This new model, called DeepJet, overcomes the limitations in input size that affected previous approaches. As a result, the heavy flavour classification performance improves, and the model is extended to also perform quark-gluon tagging.
Forward citations
Cited by 25 Pith papers
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Search for single production of a vector-like T quark decaying to a top quark and a neutral scalar boson in the lepton+jets final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No evidence of a single vector-like T quark decaying to a top quark plus a neutral scalar is found; new 95% CL exclusion limits are set, first for the new-scalar channel.
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Search for a resonance in events with four top quarks decaying into two leptons and jets in proton-proton collisions
No significant excess is observed in a search for top-philic resonances in four-top-quark events with two leptons, and 95% confidence-level upper limits are set for mediator masses from 500 GeV to 4 TeV.
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Combination of vector boson scattering measurements in leptonic final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A simultaneous profile-likelihood fit of all CMS leptonic vector boson scattering channels finds signal strengths consistent with the standard model and provides a charge-separated measurement of W boson production.
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Search for a top-philic Z' boson decaying into a $\mathrm{t\bar{t}}$ pair in a final state with jets and an electron or muon in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
CMS sees no evidence for a top-philic Z' boson decaying to top-quark pairs and sets the tightest published cross-section limits for masses between 0.5 and 3 TeV.
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Search for Higgs boson production at high transverse momentum in the WW decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A first dedicated search for highly Lorentz-boosted H->WW decays at the LHC finds mu = -0.19 +0.48/-0.46, consistent with no signal above background.
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Search for heavy resonances decaying into two Higgs bosons in the $\mathrm{b\bar{b}}\tau^+\tau^-$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No excess is observed in resonant Higgs pair production in the bb tau tau final state; 95% CL limits are set on spin-0 and spin-2 resonance cross sections from 1 to 4.5 TeV.
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Combination of searches for heavy vector boson resonances in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A CMS combination of searches finds no heavy vector boson resonance and excludes HVT W′/Z′ bosons below 5.5 TeV (weak coupling), 4.8 TeV (strong coupling), and 2.0 TeV for VBF production at 95% CL.
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Search for long-lived particles using displaced vertices with low-momentum tracks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A displaced-vertex search for compressed-spectrum long-lived particles excludes top squarks up to about 1100 GeV and wino-like neutralinos up to about 550 GeV, the strongest limits on these benchmark models.
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Search for a Higgs boson produced in association with a charm quark and decaying to a W boson pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV
The first search for a Higgs boson produced with a charm quark and decaying to a W-boson pair sees no excess, and combined with the diphoton channel limits the Higgs-charm coupling to below 47 times the standard model...
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Search for the nonresonant and resonant production of a Higgs boson in association with an additional scalar boson in the $\gamma\gamma\tau\tau$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS finds no evidence for Higgs-pair or new-scalar production in the two-photon plus two-tau final state and sets new upper limits on these processes.
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Measurement of WWZ and ZH production cross sections at $\sqrt{s}$ = 13 and 13.6 TeV
The WWZ and ZH production rates match the standard model, with a combined significance of 4.5 standard deviations and first evidence at 13.6 TeV.
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Jet Substructure Probe on Scalar Leptoquark Models via Top Polarization
A simulation study projects up to 5.4 sigma discovery significance for scalar leptoquarks at the HL-LHC and up to 3.2 sigma separation between the S3 and R2 models using a BDT score.
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Search for an exotic decay of the 125 GeV Higgs boson to a pair of light pseudoscalars in the final state of two muons and two c-quarks in proton-proton collisions at $\sqrt{s} = 13\;\text{TeV}$ with CMS Open Data
The first search for h->aa->mumu cc in LHC data sets 95% CL upper limits down to 3.3e-4 on sigma/sigma_SM times the branching fraction, excluding new parameter space in 2HDM+S models.
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Measurement of the W boson decay branching fraction ratio $\mathcal{B}$(W $\to$ cq) / $\mathcal{B}$(W $\to$ $\mathrm{q\bar{q}'}$) in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Using 138 inverse femtobarns of 13 TeV proton-proton collisions, CMS measured the W to charm branching fraction ratio as 0.489 ± 0.020, consistent with the Standard Model.
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Search for heavy neutral Higgs bosons A and H in the $\mathrm{t\bar{t}}$Z channel in proton-proton collisions at 13 TeV
A CMS search in a previously unexplored final state finds no heavy neutral Higgs signal and sets the most stringent limits to date on the A to ZH to tt process at high masses.
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Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H $\to\mathrm{b\bar{b}}$ decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS reports simultaneous constraints on six dimension-six SMEFT Wilson coefficients from VH, H to bb production at sqrt(s) = 13 TeV; all results agree with the standard model.
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Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No long-lived staus are observed; CMS excludes stau masses up to 425 GeV at 50 mm lifetime (mass-degenerate) and decay lengths 21-94 mm / 6-333 mm at 200 GeV.
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Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A CMS search with 138 fb^-1 of 13 TeV data finds no dark matter produced with a Higgs boson decaying to bottom quarks, and sets 95% CL exclusions on Z' and 2HDM+a model parameters.
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Search for a boosted Higgs boson decaying to bottom quark pairs in association with a W or Z boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV
In 138 fb^-1 of 13 TeV proton collisions, CMS measures the boosted VH, H->bb signal strength as mu=0.72^{+0.75}_{-0.71}, consistent with the Standard Model.
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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
CMS measures the Higgs total width as 3.9 +2.7 -2.2 MeV from the ratio of off-shell to on-shell H→WW production, consistent with the Standard Model.
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Deep-learning jet flavor tagging for precision hadronic Higgs measurements at future $e^+e^-$ Higgs factories
The two-stage deep-learning tagger pipeline projects CEPC statistical precisions of 0.18% (bb), 1.07% (cc), 0.52% (gg) and 78% (ss) for sigma(ZH)xBr(H->X) at 20 ab^-1, improving cc/gg benchmarks by ~42%/26%.
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Search for bosons of an extended Higgs sector in b quark final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A CMS search for additional Higgs bosons decaying to bottom quarks finds no signal and sets the most stringent limits to date in the high-mass regime.
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Evaluating the Impact of Detector Design on Jet Flavor Tagging for Future Colliders
A fast-simulation study shows detectors with time-of-flight and cluster-counting particle ID tag strange jets up to 2.5 times better than SiD, while calorimeter resolution variations barely affect jet flavor tagging.
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Measurement of the inclusive WZ production cross section in pp collisions at $\sqrt{s}$ = 13.6 TeV
The CMS experiment measured the inclusive WZ production cross section at 13.6 TeV and found it consistent with Standard Model predictions.
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Search for a new neutral gauge boson produced in association with one or two b jets and decaying into a pair of muons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No Z' boson decaying to muon pairs and produced with b jets appears in 138 fb⁻¹ of CMS data, yielding first 95% CL limits of 0.2–2 fb on σ×B×A×ε across 125–350 GeV.
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