# ${{\boldsymbol \Xi}_{{b}}}$ MEAN LIFE

OUR EVALUATION'' is an average using rescaled values of the data listed below. The average and rescaling were performed by the Heavy Flavor Averaging Group (HFLAV) and are described at http://www.slac.stanford.edu/xorg/hflav/. The averaging/rescaling procedure takes into account correlations between the measurements and asymmetric lifetime errors.

# ${{\boldsymbol \Xi}_{{b}}^{0}}$ MEAN LIFE INSPIRE search

VALUE ($10^{-12}$ s) DOCUMENT ID TECN  COMMENT
$\bf{ 1.480 \pm0.030}$ OUR EVALUATION
$1.477$ $\pm0.026$ $\pm0.019$ 1
 2014 Z
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
1  Uses ${{\mathit \Xi}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Xi}_{{c}}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \Xi}_{{c}}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays. The measurement comes from the value of relative lifetime of ${{\mathit \Xi}_{{b}}^{0}}$ to ${{\mathit \Lambda}_{{b}}^{0}}$.
References:
 AAIJ 2014Z
PRL 113 032001 Precision Measurement of the Mass and Lifetime of the ${{\mathit \Xi}_{{b}}^{0}}$ Baryon