Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016

TL;DR

This paper presents comprehensive world averages of properties of $b$-hadrons, $c$-hadrons, and $ au$-leptons based on data available up to summer 2016, including lifetimes, mixing, and decay parameters.

Contribution

It provides the first unified set of averaged measurements for heavy flavor particles, incorporating correlated uncertainties and standardized input parameters.

Findings

Updated world averages for heavy flavor properties

Consistent set of measurements with adjusted input parameters

Enhanced precision in CKM matrix elements

Abstract

This article reports world averages of measurements of $b$-hadron, $c$-hadron, and $\tau$-lepton properties obtained by the Heavy Flavor Averaging Group using results available through summer 2016. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, \CP~violation parameters, parameters of semileptonic decays and CKM matrix elements.