Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV
arXiv:1712.07158 · doi:10.1088/1748-0221/13/05/P05011
Abstract
Many measurements and searches for physics beyond the standard model at the LHC rely on the efficient identification of heavy-flavour jets, i.e. jets originating from bottom or charm quarks. In this paper, the discriminating variables and the algorithms used for heavy-flavour jet identification during the first years of operation of the CMS experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV, are presented. Heavy-flavour jet identification algorithms have been improved compared to those used previously at centre-of-mass energies of 7 and 8 TeV. For jets with transverse momenta in the range expected in simulated events, these new developments result in an efficiency of 68% for the correct identification of a b jet for a probability of 1% of misidentifying a light-flavour jet. The improvement in relative efficiency at this misidentification probability is about 15%, compared to previous CMS algorithms. In addition, for the first time algorithms have been developed to identify jets containing two b hadrons in Lorentz-boosted event topologies, as well as to tag c jets. The large data sample recorded in 2016 at a centre-of-mass energy of 13 TeV has also allowed the development of new methods to measure the efficiency and misidentification probability of heavy-flavour jet identification algorithms. The heavy-flavour jet identification efficiency is measured with a precision of a few per cent at moderate jet transverse momenta (between 30 and 300 GeV) and about 5% at the highest jet transverse momenta (between 500 and 1000 GeV).
Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BTV-16-002 (CMS Public Pages)
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- Search for dark matter in events with a leptoquark and missing transverse momentum in proton-proton collisions at 13 TeV
- Search for W boson decays to three charged pions
- Searching for heavy Higgs in supersymmetric final states at the LHC
- Measurement of the inclusive production cross section in proton-proton collisions at 5.02 TeV
- Precision measurement of the Z boson invisible width in pp collisions at = 13 TeV
- Searching for Metastable Particles with Sub-Millimeter Displaced Vertices at Hadron Colliders
- Search for excited states of light and heavy flavor quarks in the +jet final state in proton-proton collisions at 13 TeV
- Vector Bosons and Jets in Proton Collisions
- Boosted Top quark polarization
- Search for production of a single vector-like quark decaying to tH or tZ in the all-hadronic final state in pp collisions at = 13 TeV
- Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at = 13 TeV
- A tagger for strange jets based on tracking information using long short-term memory
- Maximum performance of strange-jet tagging at hadron colliders
- Measurement of the top quark pair production cross section in dilepton final states containing one lepton in pp collisions at 13 TeV
- Inclusive search for supersymmetry in pp collisions at 13 TeV using razor variables and boosted object identification in zero and one lepton final states
- Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at 13 TeV
- Search for Higgs boson and observation of Z boson through their decay into a charm quark-antiquark pair in boosted topologies in proton-proton collisions at = 13 TeV
- Bias and Priors in Machine Learning Calibrations for High Energy Physics
- Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at 13 TeV
- Search for heavy pseudoscalar and scalar bosons decaying to a top quark pair in proton-proton collisions at = 13 TeV
- Observation of tW production in the single-lepton channel in pp collisions at = 13 TeV
- Transport away your problems: Calibrating stochastic simulations with optimal transport
- Phenomenology at the LHC of composite particles from strongly interacting Standard Model fermions via four-fermion operators of NJL type
- Search for a heavy resonance decaying to a top quark and a W boson at 13 TeV in the fully hadronic final state
- Review of top quark mass measurements in CMS
- Constraints on anomalous Higgs boson couplings from its production and decay using the WW channel in proton-proton collisions at = 13 TeV
- Measurement of the production cross section for Z + b jets in proton-proton collisions at 13 TeV
- Search for inelastic dark matter in events with two displaced muons and missing transverse momentum in proton-proton collisions at = 13 TeV
- Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at 13 TeV
- Search for exotic decays of the Higgs boson to a pair of pseudoscalars in the bb and bb final states
- Reconstruction of decays to merged photons using end-to-end deep learning with domain continuation in the CMS detector
- End-to-end simulation of particle physics events with Flow Matching and generator Oversampling
- Measurements of the electroweak diboson production cross sections in proton-proton collisions at 5.02 TeV using leptonic decays
- Search for resonant production of second-generation sleptons with same-sign dimuon events in proton-proton collisions at 13 TeV
- Measurement of the production cross section for a W boson in association with a charm quark in proton-proton collisions at = 13 TeV
- Investigating New Physics Models with Signature of Same-Sign Diboson +
- Search for medium effects using jets from bottom quarks in PbPb collisions at = 5.02 TeV
- Search for new physics using effective field theory in 13 TeV pp collision events that contain a top quark pair and a boosted Z or Higgs boson
- Search for narrow H resonances in proton-proton collisions at 13 TeV
- Probing the nonstandard top-gluon couplings through production at the LHC
- Machine learning classification: case of Higgs boson CP state in H to tau tau decay at LHC
- Searches for violation of Lorentz invariance in top quark pair production using dilepton events in 13 TeV proton-proton collisions
- Deeply Learned Preselection of Higgs Dijet Decays at Future Lepton Colliders
- SymbolFit: Automatic Parametric Modeling with Symbolic Regression
- Improving Robustness of Jet Tagging Algorithms with Adversarial Training
- Probing a with non-universal fermion couplings through top quark fusion, decays to bottom quarks, and machine learning techniques
- Search for new particles in an extended Higgs sector with four b quarks in the final state at 13 TeV
- Interplay of Traditional Methods and Machine Learning Algorithms for Tagging Boosted Objects
- End-to-End Jet Classification of Boosted Top Quarks with the CMS Open Data
- Parton Labeling without Matching: Unveiling Emergent Labelling Capabilities in Regression Models
- Mutually elusive: vectorlike antileptons and leptoquarks
- Les Houches guide to reusable ML models in LHC analyses
- Machine-Learning Performance on Higgs-Pair Production Associated with Dark Matter at the LHC
- Search for baryon number violation in top quark production and decay using proton-proton collisions at = 13 TeV
- A search for bottom-type vector-like quark pair production in dileptonic and fully hadronic final states in proton-proton collisions at = 13 TeV
- Measurement of inclusive and differential cross sections for WW production in proton-proton collisions at = 13.6 TeV
- Performance of heavy-flavour jet identification in Lorentz-boosted topologies in proton-proton collisions at = 13 TeV
- A heavy neutral gauge boson near the Z boson mass pole via third generation fermions at the LHC
- Reporting Results in High Energy Physics Publications: a Manifesto
- Search for flavor-changing neutral current interactions of the top quark mediated by a Higgs boson in proton-proton collisions at 13 TeV
- Strange Jet Tagging
- Identification of additional jets in the t-tbar b-bbar events using a deep neural network
- Measurement of the charge asymmetry in events with highly Lorentz-boosted top quarks in pp collisions at = 13 TeV
- Accessing CKM suppressed top decays at the LHC
- Search for pair production of scalar and vector leptoquarks decaying to muons and bottom quarks in proton-proton collisions at = 13 TeV
- Secondary Vertex Reconstruction with MaskFormers
- Search for pair-produced resonances each decaying into at least four quarks in proton-proton collisions at 13 TeV
- Measurement of the Z boson differential production cross section using its invisible decay mode (Z ) in proton-proton collisions at 13 TeV
- Search for pair production of heavy particles decaying to a top quark and a gluon in the lepton+jets final state in proton-proton collisions at = 13 TeV
- Results on TOP physics from CMS
- Study of WH production through vector boson scattering and extraction of the relative sign of the W and Z couplings to the Higgs boson in proton-proton collisions at = 13 TeV
- Diffractive and photon-induced production of top quark
- Search for top squark pair production in a final state with two tau leptons in proton-proton collisions at 13 TeV
- Search for resonances decaying to three W bosons in the hadronic final state in proton-proton collisions at 13 TeV
- Search for resonances decaying to three W bosons in proton-proton collisions at 13 TeV
- Search for scalar leptoquarks produced via -lepton-quark scattering in pp collisions at = 13 TeV
- Jet energy calibration with deep learning as a Kubeflow pipeline
- Mass suppression effect in QCD radiation and hadron angular distribution in jet
- Probing doubly charged scalar bosons from the doublet at future high-energy colliders
- Lepton Flavor Violation: From Muon Decays to Muon Colliders
- Simultaneous probe of the charm and bottom quark Yukawa couplings using H events
- Measurement of WWZ and ZH production cross sections at = 13 and 13.6 TeV
- Transforming jet flavour tagging at ATLAS
- Neural networks for boosted di- identification
- Search for ZZ and ZH production in the final state using proton-proton collisions at = 13 TeV
- Classifier Surrogates: Sharing AI-based Searches with the World
- Evidence for tWZ production in proton-proton collisions at = 13 TeV in multilepton final states
- Measurement of the production cross section of a Higgs boson with large transverse momentum in its decays to a pair of leptons in proton-proton collisions at = 13 TeV
- A case study of sending graph neural networks back to the test bench for applications in high-energy particle physics
- Search for charged-lepton flavor violation in the production and decay of top quarks using trilepton final states in proton-proton collisions at = 13 TeV
- Exotic diboson decays in the USSM
- From strange-quark tagging to fragmentation tagging with machine learning
- Prospects for sub-EW-scale ALP searches via signatures at the LHC using jet substructure techniques
- Search for rare decays of the Z and Higgs bosons to a J/ or (2S) meson and a photon in proton-proton collisions at = 13 TeV
- First evidence for mixing-induced violation in B J/(1020) decays in pp collisions at 13 TeV
- Prospects for exotic decays in single and di-Higgs boson production at the LHC and future hadron colliders
- Searching for New Physics in Hadronic Final States with Run 2 Proton-Proton Collision Data at the LHC
- Designing Observables for Quantum Interference in Jets at Subleading Color
- Search for light Higgs bosons from supersymmetric cascade decays in pp collisions at = 13 TeV
- Sequence-based Machine Learning Models in Jet Physics
- Towards constraining triple gluon operators through tops
- Probing Compressed Mass Spectrum Supersymmetry at the LHC with the Vector Boson Fusion Topology
- Measurement of the inclusive and differential cross sections in the single-lepton channel and EFT interpretation at = 13 TeV
- 2 or not 2: on the rejection of jets
- Transformers for Charged Particle Track Reconstruction in High Energy Physics
- Development of systematic uncertainty-aware neural network trainings for binned-likelihood analyses at the LHC
- Search for heavy resonances decaying to Z()V(qq') in proton-proton collisions at 13 TeV
- Search for flavor changing neutral current interactions of the top quark in final states with a photon and additional jets in proton-proton collisions at = 13 TeV
- Probing new physics at the LHC with final states
- Reconstruction and identification of with high transverse momentum in the full hadronic final state
- General search for supersymmetric particles in scenarios with compressed mass spectra using proton-proton collisions at = 13 TeV
- Probing Light Scalars and Vector-like Quarks at the High-Luminosity LHC
- Tagging fully hadronic exotic decays of the vectorlike quark using a graph neural network
- ReSyst: a novel technique to Reduce the Systematic uncertainty for precision measurements
- Experimental Impact of Jet Fragmentation Reference Frames At Particle Colliders
- Tagging the Higgs boson decay to bottom quarks with colour-sensitive observables and the Lund jet plane
- Improving sensitivity of vectorlike top partner searches with jet substructure
- Search for physics beyond the standard model in events with overlapping photons and jets
- Search for Higgsinos in final states with low-momentum lepton-track pairs at 13 TeV
- Observation of tWZ production at the CMS experiment
- Measurement of the Higgs boson total decay width using the H WW e decay channel in proton-proton collisions at = 13 TeV
- Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at = 13 TeV
- B-jet Tagging Using a Hybrid Edge Convolution and Transformer Architecture
- Machine learning in top quark physics at ATLAS and CMS
- Search for new physics in jet multiplicity patterns of multilepton events at = 13 TeV
- Improving the Direct Determination of using Deep Learning
- A FAIR and AI-ready Higgs boson decay dataset
- Search for a neutral gauge boson with nonuniversal fermion couplings in vector boson fusion processes in proton-proton collisions at = 13 TeV
- Measurement of the W boson decay branching fraction ratio (W cq) / (W ) in proton-proton collisions at = 13 TeV
- Search for bottom quark associated production of the standard model Higgs boson in final states with leptons in proton-proton collisions at = 13 TeV
- A self-calibrating, double-ratio method to test tau lepton universality in W boson decays at the LHC
- Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at = 13 TeV