Jet-Origin Identification and Its Application at an Electron-Positron Higgs Factory

Abstract

To enhance the scientific discovery power of high-energy collider experiments, we propose and realize the concept of jet origin identification that categorizes jets into 5 quark species $(b,c,s,u,d)$, 5 anti-quarks $(\bar{b},\bar{c},\bar{s},\bar{u},\bar{d})$, and the gluon. Using state-of-the-art algorithms and simulated $\nu \bar{\nu }H,H\to jj$ events at 240 GeV center-of-mass energy at the electron-positron Higgs factory, the jet origin identification simultaneously reaches jet flavor tagging efficiencies ranging from 67% to 92% for bottom, charm, and strange quarks, and jet charge flip rates of 7% to 24% for all quark species. We apply the jet origin identification to Higgs rare and exotic decay measurements at the nominal luminosity of the Circular Electron Positron Collider (CEPC), and conclude that the upper limits on the branching ratios of $H\to s\bar{s},u\bar{u},d\bar{d}$, and $H\to sb,db,uc,ds$ can be determined to $2\times 10^{-4}$ to $1\times 10^{-3}$ at 95% confidence level. The derived upper limit for $H\to s\bar{s}$ decay is approximately three times the prediction of the Standard Model.

References in corpus (37)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Herwig++ Physics and Manual
• Herwig 7.0 / Herwig++ 3.0 Release Note
• ParticleNet: Jet Tagging via Particle Clouds
• Observation of Higgs boson decay to bottom quarks
• Higgs Boson Studies at Future Particle Colliders
• Observation of $H\to b\bar{b}$ decays and $VH$ production with the ATLAS detector
• Version 3 of {\tt RunDec} and {\tt CRunDec}
• Standard Model Higgs-Boson Branching Ratios with Uncertainties
• Quark and Gluon Tagging at the LHC
• Precision Higgs Physics at CEPC
• Observation of Time-Dependent CP Violation in B0 -> eta' K0 Decays and Improved Measurements of CP Asymmetries in B0 -> phiK0, KsKsKs and B0 -> J/psi K0 Decays
• On the future of Higgs, electroweak and diboson measurements at lepton colliders
• On the Topic of Jets: Disentangling Quarks and Gluons at Colliders
• LCFIPlus: A Framework for Jet Analysis in Linear Collider Studies
• Measurement of the weak mixing angle using the forward-backward asymmetry of Drell-Yan events in pp collisions at 8 TeV
• Measurements of Higgs Bosons Decaying to Bottom Quarks from Vector Boson Fusion Production with the ATLAS Experiment at $\sqrt{s}=$ 13 TeV
• Direct constraint on the Higgs-charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector
• Updated measurement of time-dependent $CP$-violating observables in $B_s^0\to J/\psi K^{+}{K}^{-}$ decays
• Reconstruction of physics objects at the Circular Electron Positron Collider with Arbor
• Physics cross sections and event generation of $e^{+}{e}^{-}$ annihilations at the CEPC
• Search for Higgs boson decay to a charm quark-antiquark pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Higgs Boson Flavor-Changing Neutral Decays into Bottom Quarks in Supersymmetry
• Probing the strange Higgs coupling at lepton colliders using light-jet flavor tagging
• Performance study of particle identification at the CEPC using TPC $dE/dx$ information
• Flavor violating Higgs and $Z$ decays at FCC-ee
• Understanding Jet Charge
• Quark flavour-violating Higgs decays at the ILC
• Measurements of decay branching fractions of $H\to b\bar{b}/c\bar{c}/gg$ in associated $(e^{+}{e}^{-}/{\mu }^{+}{\mu }^{-})H$ production at the CEPC
• Requirement analysis for dE/dx measurement and PID performance at the CEPC baseline detector
• Discriminating between Higgs Production Mechanisms via Jet Charge at the LHC
• The $Higgs\to b\bar{b},c\bar{c},gg$ measurement at CEPC
• Lepton identification performance in Jets at a future electron positron Higgs Z factory
• Constraints on the Higgs boson anomalous FCNC interactions with light quarks
• Cluster time measurement with CEPC calorimeter

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• Discovery Potential of Future Electron-Positron Colliders for a 95 GeV Scalar
• One-to-one correspondence reconstruction at the electron-positron Higgs factory
• Constraint-Aware Quantum Optimization via Hamming Weight Operators
• Determination of the first-generation quark couplings at the Z-pole
• Probing Z/W Pole Physics at High-energy Muon Colliders via Vector-boson-fusion Processes
• Impact of quark flavor violating SUSY on h(125) decays at future lepton colliders
• Jet flavor tagging with Particle Transformer for Higgs factories
• Prospect for measurement of $CP$-violating observables in $B_s^0\to D_s^{\mp }{K}^{\pm }$ decays at a future $Z$ factory