Journal
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
Volume 189, Issue -, Pages 175-180Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysbps.2009.03.031
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We update the hadronic tau determination of vertical bar V-us vertical bar, showing that current strange branching fractions produce results 2 - 3 sigma lower than 3-family unitarity expectations. Issues related to the size of theoretical uncertainties and results from an alternate, mixed tau-electroproduction sum rule determination are also considered.
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