# quarkonium

> meson whose constituents are a quark and its own antiquark of the same flavor

**Wikidata**: [Q1540413](https://www.wikidata.org/wiki/Q1540413)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Quarkonium)  
**Source**: https://4ort.xyz/entity/quarkonium


## References

1. Integrated Authority File
2. Freebase Data Dumps. 2013
3. National Library of Israel Names and Subjects Authority File
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)