**Averages of experimental results on b-hadron lifetimes, fractions and mixing parameters**

... prepared for the PDG 2021 Review of Particle Physics

... prepared for the PDG 2020 Review of Particle Physics

... prepared for the PDG 2019 Review of Particle Physics (and described in Chapter 4 of arXiv:1909.12524 [hep-ex])

... prepared for the PDG 2018 Review of Particle Physics

... as of Summer 2017

... prepared for the PDG 2017 Review of Particle Physics (and described in Chapter 3 of Eur. Phys. J. C77 (2017) 895, arXiv:1612.07233 [hep-ex])

... as of Summer 2016 (and described in Chapter 3 of arXiv:1612.07233v1 [hep-ex])

... as of Spring 2016

... prepared for the PDG 2016 Review of Particle Physics

... as of Summer 2015

... prepared for the PDG 2015 Review of Particle Physics

... as of Fall 2014 (and described in Chapter 3 of arXiv:1412.7515 [hep-ex])

... prepared for the PDG 2014 Review of Particle Physics

... as of Spring 2014

... prepared for the PDG 2013 Review of Particle Physics

... as of Fall 2012 (up to CKM 2012 workshop)

... as of Spring 2012 (and described in Chapter 3 of arXiv:1207.1158 [hep-ex])

... prepared for the PDG 2012 Review of Particle Physics

... prepared for the PDG 2011 Review of Particle Physics

... at the "end of 2009", but in fact including all pre-summer 2010 results (and described in Chapter 3 of arXiv:1010.1589 [hep-ex])

... prepared for the PDG 2010 Review of Particle Physics

... prepared for the PDG 2009 Review of Particle Physics

... at the "end of 2007", but in fact including all pre-summer 2008 results (and described in Chapter 3 of arXiv:0808.1297 [hep-ex])

... prepared for the PDG 2008 Review of Particle Physics

... prepared for the PDG 2007 Review of Particle Physics

... at the end of 2006 (and described in Chapter 3 of arXiv:0704.3575 [hep-ex])

... partially updated with some of the Winter 2006 results (mainly dms)

... prepared for the PDG 2006 Review of Particle Physics

... at the end of 2005 (and described in Chapter 3 of hep-ex/0603003)

... prepared for the Summer 2005 conferences

... prepared for the Winter 2005 conferences (and described in Chapter 3 of hep-ex/0505100, erratum)

... prepared for the PDG 2005 web update

... prepared for the Summer 2004 conferences (and described in Chapter 3 of hep-ex/0412073)

... prepared for the Winter 2004 conferences

... prepared for the PDG 2004 Review of Particle Physics

... prepared for the Summer 2003 conferences

... prepared for the PDG 2003 web update

... prepared for the Winter 2003 conferences

(averages performed before 2003 can be found in the web pages of the former LEP B oscillations working group; averages performed between 2003 and 2018 can also be found on the previous HFLAV web site at SLAC)

**Non-perturbative parameters for B-mixing from Lattice QCD **

... see web pages of the Flavour Lattice Averaging Group (FLAG)

... see web pages of the lattice QCD averages (no longer maintained ?)