Delphes ROOT Samples

This dataset contains Delphes ROOT samples for Higgs, top-quark, photon, and analysis-specific studies. Files are organized by physical process when they represent general-purpose simulated samples, and by analysis when they are derived analysis products.

Repository layout

samples/              General-purpose simulated samples, grouped by process
  higgs/              ggF, VBF, VH, ttH, and tHjb production
  top/                Single-top, ttbar, ttV, multi-top, FCNC, and STOP samples
  photon/             Diphoton and tt+diphoton samples
derived/multilabel/   Samples augmented for multilabel workflows
analyses/th-cp/       tH CP-analysis samples
metadata/samples.csv  Machine-readable file inventory

The role of a process as signal or background is analysis-dependent and is therefore not encoded in the directory hierarchy.

Filename conventions

Filename qualifiers inherited from the source collection include:

• LO and NLO: perturbative order used in event generation.
• inc: inclusive sample.
• truth: truth-level information is included.
• 1l, 2l, had, lep, loose, and tight: channel or selection variants.
• multilabel: a derived sample prepared for multilabel workflows.

Consult metadata/samples.csv for the canonical path and byte size of every ROOT file. Physics metadata such as generators, cross sections, event counts, Delphes versions/cards, and collision energies should be added when available.

Loading a file

Download an individual file from the Hub and open it with uproot:

from huggingface_hub import hf_hub_download
import uproot

path = hf_hub_download(
    repo_id="HWresearch/Delphes",
    repo_type="dataset",
    filename="samples/higgs/ggf/ggF_NLO_inc.root",
)

with uproot.open(path) as root_file:
    print(root_file.keys())

ROOT is not a native Hugging Face dataset-viewer format, so consumers should use ROOT or uproot to inspect trees and branches.