One-to-one correspondence reconstruction at the electron-positron Higgs factory

Abstract

We propose one-to-one correspondence reconstruction for electron-positron Higgs factories. For each visible particle, one-to-one correspondence aims to associate relevant detector hits with only one reconstructed particle and accurately identify its species. To achieve this goal, we develop a novel detector concept featuring 5-dimensional calorimetry that provides spatial, energy, and time measurements for each hit, and a reconstruction framework that combines state-of-the-art particle flow and artificial intelligence algorithms. In the benchmark process of Higgs to di-jets, over 90% of visible energy can be successfully mapped into well-reconstructed particles that not only maintain a one-to-one correspondence relationship but also associate with the correct combination of cluster and track, improving the invariant mass resolution of hadronically decayed Higgs bosons by 25%. Performing simultaneous identification on these well-reconstructed particles, we observe efficiencies of 97% to nearly 100% for charged particles ($e^{\pm }$, ${\mu }^{\pm }$, ${\pi }^{\pm }$, $K^{\pm }$, $p/\bar{p}$) and photons ($\gamma$), and 75% to 80% for neutral hadrons ($K_L^0$, $n$, $\bar{n}$). For physics measurements of Higgs to invisible and exotic decays, golden channels to probe new physics, one-to-one correspondence could enhance discovery power by 10% to up to a factor of two. This study demonstrates the necessity and feasibility of one-to-one correspondence reconstruction at electron-positron Higgs factories.

References in corpus (25)

• 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
• Design and Construction of the BESIII Detector
• Herwig 7.0 / Herwig++ 3.0 Release Note
• Particle-flow reconstruction and global event description with the CMS detector
• WHIZARD: Simulating Multi-Particle Processes at LHC and ILC
• Particle Flow Calorimetry and the PandoraPFA Algorithm
• ParticleNet: Jet Tagging via Particle Clouds
• CEPC Technical Design Report -- Accelerator (v2)
• The BESIII Physics Programme
• Reconstruction of physics objects at the Circular Electron Positron Collider with Arbor
• Reconstructing particles in jets using set transformer and hypergraph prediction networks
• Lepton identification at particle flow oriented detector for the future $e^{+}{e}^{-}$ Higgs factories
• Jet-Origin Identification and Its Application at an Electron-Positron Higgs Factory
• Performance study of particle identification at the CEPC using TPC $dE/dx$ information
• Requirement analysis for dE/dx measurement and PID performance at the CEPC baseline detector
• Fractal Dimension of Particle Showers Measured in a Highly Granular Calorimeter
• Improving the Jet Reconstruction with the Particle Flow Method; an Introduction
• The Higgs Signatures at the CEPC CDR Baseline
• Improved particle-flow event reconstruction with scalable neural networks for current and future particle detectors
• Jet performance at the Circular electron-positron Collider
• Lepton identification performance in Jets at a future electron positron Higgs Z factory
• Prospect for measurement of the CP-violating phase ${\varphi }_s$ in the $B_s\to J/\psi \varphi$ channel at a future Z factory
• Optimization of tracker configuration for the CEPC

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