${{\boldsymbol \Xi}_{{b}}}$ 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.
${{\boldsymbol \Xi}_{{b}}^{-}}$ MEAN LIFE
INSPIRE search
| $\bf{
1.572 \pm0.040}$
|
OUR EVALUATION
|
| $\bf{
1.57 \pm0.04}$
|
OUR AVERAGE
Error includes scale factor of 1.1.
|
| $1.599$ $\pm0.041$ $\pm0.022$ |
1 |
|
LHCB |
| $1.55$ ${}^{+0.10}_{-0.09}$ $\pm0.03$ |
2 |
|
LHCB |
| $1.36$ $\pm0.15$ $\pm0.02$ |
|
|
CDF |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $1.56$ ${}^{+0.27}_{-0.25}$ $\pm0.02$ |
3 |
|
CDF |
|
1
Reconstructed in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit \Xi}_{{c}}^{0}}{{\mathit \pi}^{-}}$ , ${{\mathit \Xi}_{{c}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays. Reference ${{\mathit \Lambda}_{{b}}^{0}}$ lifetime $1.479$ $\pm0.009$ $\pm0.010$ ps from AAIJ 2014U.
|
|
2
Measured in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Xi}^{-}}$ decays.
|
|
3
Measured in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit \Xi}^{-}}$ decays with $66$ ${}^{+14}_{-9}$ candidates.
|
|
| References: |
|
| PL B736 154 |
Measurement of the ${{\mathit \Xi}_{{b}}^{-}}$ and ${{\mathit \Omega}_{{b}}^{-}}$ Baryon Lifetimes |
|
| PRL 113 242002 |
Precision Measurement of the Mass and Lifetime of the ${{\mathit \Xi}_{{b}}^{-}}$ Baryon |
|
| PR D89 072014 |
Mass and Lifetime Measurements of Bottom and Charm Baryons in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV |
|
| PR D80 072003 |
Observation of the ${{\mathit \Omega}_{{b}}^{-}}$ Baryon and Measurement of the Properties of the ${{\mathit \Xi}_{{b}}^{-}}$ and ${{\mathit \Omega}_{{b}}^{-}}$ Baryons |
|
