Main goals

• provide updated tau lepton averages for a selection of quantities, with improved accounting of
  • systematic dependencies
  • systematic uncertainties that are correlated between measurements
• test lepton universality and compute V_us with tau measurements

Reports

• Early 2012 HFAG report
  • arXiv:1207.1158v1 [hep-ex], Y. Amhis et al., "Averages of b-hadron, c-hadron, and tau-lepton properties as of early 2012"
  • HFAG-Tau web report
    • includes newly published measurements
    • includes average of three |Vus| determinations with tau data
• Summer 2011 HFAG-Tau web report
• since March 2011 includes some additional new and old measurements
• Summer 2010 HFAG report
  • arXiv:1010.1589v3 [hep-ex], D. Asner et al., "Averages of b-hadron, c-hadron, and tau-lepton Properties"
  • first HFAG-Tau report

Additional useful references, which are not official HFAG-Tau reports

• Tau 2010 proceedings contribution on HFAG-Tau on-going work
  • S.Banerjee et al., Status Report from Tau subgroup of the HFAG,
    Proceedings of the 11th International Workshop on Tau Lepton Physics, Manchester, UK, 13-17 September 2010,
    arXiv:1101.5138 [hep-ex]

Members

• Swagato Banerjee (Univ. of Victoria, BaBar)
• Kiyoshi Hayasaka (Nagoya University, Belle)
• Hisaki Hayashii (Nara Women's University, Belle)
• Alberto Lusiani (Scuola Normale Superiore and INFN, Pisa, BaBar), convener
• J. Michael Roney (Univ. of Victoria, BaBar)
• Boris Shwartz (Budker Institute of Nuclear Physics, Belle)