Pith. sign in

REVIEW 9 cited by

OmniFold: A Method to Simultaneously Unfold All Observables

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1911.09107 v2 pith:UW2W64NV submitted 2019-11-20 hep-ph hep-exphysics.data-anstat.ML

OmniFold: A Method to Simultaneously Unfold All Observables

classification hep-ph hep-exphysics.data-anstat.ML
keywords informationobservablesunfoldingbinnedcolliderdatadetectorincluding
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
Share X Bluesky LinkedIn Reddit HN
read the original abstract

Collider data must be corrected for detector effects ("unfolded") to be compared with many theoretical calculations and measurements from other experiments. Unfolding is traditionally done for individual, binned observables without including all information relevant for characterizing the detector response. We introduce OmniFold, an unfolding method that iteratively reweights a simulated dataset, using machine learning to capitalize on all available information. Our approach is unbinned, works for arbitrarily high-dimensional data, and naturally incorporates information from the full phase space. We illustrate this technique on a realistic jet substructure example from the Large Hadron Collider and compare it to standard binned unfolding methods. This new paradigm enables the simultaneous measurement of all observables, including those not yet invented at the time of the analysis.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 9 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Reweighting Adversarial Networks for Unbinned Unfolding

    hep-ph 2026-06 unverdicted novelty 7.0

    RANs generalize moment unfolding to full phase-space unbinned unfolding via detector-level Wasserstein critics without requiring support overlap or multiple iterations.

  2. Data-Driven Predictions for Dark Photon and Millicharged Particle Production

    hep-ph 2025-12 unverdicted novelty 7.0

    A data-driven framework using normalizing flows predicts the rate and kinematic distributions of dark photon and millicharged particle production directly from measured dilepton events.

  3. Explicit or Implicit? Encoding Physics at the Precision Frontier

    hep-ph 2026-03 conditional novelty 6.0

    On three precision classification tasks — reweighting-based unfolding, likelihood-ratio estimation, and weakly supervised anomaly detection — a Lorentz-equivariant transformer and a pretrained foundation model perform...

  4. Neural Posterior Unfolding

    hep-ph 2025-09 conditional novelty 6.0

    A normalizing-flow-based Bayesian unfolding method (NPU) plus a modern Python implementation of Fully Bayesian Unfolding (FBU) are introduced and validated on Gaussian and simulated LHC jet data.

  5. Kitchen Sink Anomaly Detection

    hep-ph 2026-04 unverdicted novelty 5.0

    A combined kitchen sink observable set of Energy Flow Polynomials and subjettiness variables outperforms standard baselines in sensitivity to a wide range of resonant signals, with new public benchmarks released and a...

  6. The PYTHIA Facility

    hep-ph 2026-03 conditional novelty 4.0

    PYTHIA is presented as a 'big science facility' in software form: since 2018 its manuals drew ~9,600 citing works and ~47,000 unique authors across LHC, heavy-ion, flavor, astroparticle, and ML-for-physics communities.

  7. HEPTAPOD: Orchestrating High Energy Physics Workflows Towards Autonomous Agency

    hep-ph 2025-12 conditional novelty 4.0

    HEPTAPOD uses LLM agents to drive FeynRules, MadGraph, Pythia, and analysis tools through schema-validated tool calls and run-card templates, demonstrated on a leptoquark signal scan.

  8. An Introduction to Bayesian and Frequentist Simulation-Based Inference with Machine Learning

    cs.LG 2026-07 accept novelty 2.0

    A structured introduction to ML-based simulation-based inference, contrasting Bayesian and frequentist frameworks and covering parameter inference, unfolding, and validation.

  9. CP-violation or Nuclear Excitation: Reviewing the Role of Neutrino Interaction Model Uncertainties on Accelerator-Based Neutrino Oscillation Measurements

    hep-ex 2026-05 unverdicted novelty 2.0

    Neutrino interaction model uncertainties from nuclear physics details remain a dominant systematic in oscillation analyses and will require improved modeling plus near-detector constraints to reach the precision goals...