cms-derived-csv/README.md

# CMS 2011 derived analysis datasets

Per-event kinematic CSVs derived from CMS 2011 open data ([CERN Open Data Portal](https://opendata.cern.ch), CC0). Each row is one event (`Run, Event, pt/eta/phi per object, invariant mass M`).

| File | Physics | Source |
|---|---|---|
| `diphoton.csv` | Higgs → γγ candidates (a discovery channel) | [record 5209](https://opendata.cern.ch/record/5209) |
| `4lepton.csv` | Higgs → 4-lepton candidates (the other discovery channel) | [record 5210](https://opendata.cern.ch/record/5210) |
| `Zmumu.csv` | Z → μμ | [record 5208](https://opendata.cern.ch/record/5208) |
| `Jpsimumu.csv` | J/ψ → μμ | [record 5203](https://opendata.cern.ch/record/5203) |
| `Dimuon_DoubleMu.csv` | dimuon events | [record 5201](https://opendata.cern.ch/record/5201) |

```bash
# Peek at the Z → μμ events
hf buckets cp hf://buckets/davanstrien/cern-opendata-demo/cms-derived-csv/Zmumu.csv - | head
```