Heavy Flavor Averaging Group
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The Heavy Flavor Averaging Group (HFAG) 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 quantities.


In late 2016 the Heavy Flavor Averaging Group established a panel to investigate sensitivities in the community to the name of the group, and in particular the pronunciation of the acronym HFAG. A brief report from the panel can be found here. In the light of these findings, the Group plans to adopt a new name/acronym in 2017.


The latest averages can be found at

Y. Amhis et al., "Averages of b-hadron, c-hadron, and tau-lepton properties as of summer 2016," arXiv:1612.07233
and online update at http://www.slac.stanford.edu/xorg/hfag

This group is currently organized into seven sub-groups that focus on a different set of heavy flavor measurements:

Click on the links above for more information about this group and its sub-groups.

This page is maintained by Alan Schwartz and Tim Gershon and was last updated