The Heavy Flavor Averaging Group (HFLAV) was established at the May 2002 Flavor Physics and CP Violation Conference (Philadelphia) and continues the LEP Heavy Flavor Steering Group's tradition of providing regular updates to the world averages of heavy flavor measurements.
Our report Averages of b-hadron, c-hadron, and tau-lepton properties as of 2023 presents the latest averages. See an overview in this summary or browse the full results with online updates from each working group:
- b-hadron lifetimes and oscillation parameters
- Semi-leptonic B decays
- Rare B decays
- Unitarity triangle angles
- B decays to charm final states
- Charm CP violation and oscillations
- Charm decays
- Tau Physics
All plots and tables created by HFLAV are available under the CC BY 4.0 licence. See the licence and citation page for details.
Check out our full list of publications Averages of b-hadron, c-hadron, and τ-lepton properties as of ...
- 2023 arXiv:2411.18639
- 2021 arXiv:2206.07501, Phys. Rev. D107, 052008
- 2018 arXiv:1909.12524, Eur. Phys. J. C81 (2021), 226
- 2016 arXiv:1612.07233, Eur. Phys. J. C77 (2017), 895
- 2014 arXiv:1412.7515
- 2012 arXiv:1207.1158
- 2010 arXiv:1010.1589
- 2007 arXiv:0808.1297
- 2006 arXiv:0704.3575
- 2005 arXiv:hep-ex/0603003
- 2005 (early) arXiv:hep-ex/0505100
- 2004 arXiv:hep-ex/0412073
In addition to this, subgroups of HFLAV have made separate updates of their activities over time.
Other contributions:
- submission to the 2026 update of the European Particle Physics Strategy in March 2025, arXiv:2503.21570
- submission to the 2020 update of the European Particle Physics Strategy in December 2018, arXiv:1812.07461