${{\boldsymbol B}^{\pm}}$ MEAN LIFE INSPIRE search

See ${{\mathit B}^{\pm}}/{{\mathit B}^{0}}/{{\mathit B}_{{s}}^{0}}/{{\mathit b}}$-baryon ADMIXTURE section for data on ${{\mathit B}}$-hadron mean life averaged over species of bottom particles. ``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 https://hflav.web.cern.ch/. The averaging/rescaling procedure takes into account correlations between the measurements and asymmetric lifetime errors.
VALUE ($ 10^{-12} $ s) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1.638 \pm0.004}$ OUR EVALUATION
$1.637$ $\pm0.004$ $\pm0.003$
AAIJ
2014E
LHCB ${{\mathit p}}{{\mathit p}}$ at 7 TeV
$1.639$ $\pm0.009$ $\pm0.009$ 1
AALTONEN
2011
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$1.663$ $\pm0.023$ $\pm0.015$ 2
AALTONEN
2011B
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$1.635$ $\pm0.011$ $\pm0.011$ 3
ABE
2005B
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$1.624$ $\pm0.014$ $\pm0.018$ 4
ABDALLAH
2004E
DLPH ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.636$ $\pm0.058$ $\pm0.025$ 5
ACOSTA
2002C
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.8 TeV
$1.673$ $\pm0.032$ $\pm0.023$ 6
AUBERT
2001F
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$1.648$ $\pm0.049$ $\pm0.035$ 7
BARATE
2000R
ALEP ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.643$ $\pm0.037$ $\pm0.025$ 8
ABBIENDI
1999J
OPAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.637$ $\pm0.058$ ${}^{+0.045}_{-0.043}$ 7
ABE
1998Q
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at $1.8$ TeV
$1.66$ $\pm0.06$ $\pm0.03$ 8
ACCIARRI
1998S
L3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.66$ $\pm0.06$ $\pm0.05$ 8
ABE
1997J
SLD ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.58$ ${}^{+0.21}_{-0.18}$ ${}^{+0.04}_{-0.03}$ 94 5
BUSKULIC
1996J
ALEP ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.61$ $\pm0.16$ $\pm0.12$ 7, 9
ABREU
1995Q
DLPH ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.72$ $\pm0.08$ $\pm0.06$ 10
ADAM
1995
DLPH ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.52$ $\pm0.14$ $\pm0.09$ 7
AKERS
1995T
OPAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1.695$ $\pm0.026$ $\pm0.015$ 6
ABE
2002H
BELL Repl. by ABE 2005B
$1.68$ $\pm0.07$ $\pm0.02$ 5
ABE
1998B
CDF Repl. by ACOSTA 2002C
$1.56$ $\pm0.13$ $\pm0.06$ 7
ABE
1996C
CDF Repl. by ABE 1998Q
$1.58$ $\pm0.09$ $\pm0.03$ 11
BUSKULIC
1996J
ALEP ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.58$ $\pm0.09$ $\pm0.04$ 7
BUSKULIC
1996J
ALEP Repl. by BARATE 2000R
$1.70$ $\pm0.09$ 12
ADAM
1995
DLPH ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$1.61$ $\pm0.16$ $\pm0.05$ 148 5
ABE
1994D
CDF Repl. by ABE 1998B
$1.30$ ${}^{+0.33}_{-0.29}$ $\pm0.16$ 92 7
ABREU
1993D
DLPH Sup. by ABREU 1995Q
$1.56$ $\pm0.19$ $\pm0.13$ 134 10
ABREU
1993G
DLPH Sup. by ADAM 1995
$1.51$ ${}^{+0.30}_{-0.28}$ ${}^{+0.12}_{-0.14}$ 59 7
ACTON
1993C
OPAL Sup. by AKERS 1995T
$1.47$ ${}^{+0.22}_{-0.19}$ ${}^{+0.15}_{-0.14}$ 77 7
BUSKULIC
1993D
ALEP Sup. by BUSKULIC 1996J
1  Measured mean life using fully reconstructed decays ( ${{\mathit J / \psi}}{{\mathit K}^{(*)}}$ ).
2  Measured using ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{-}}$ with ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ events that were selected using a silicon vertex trigger.
3  Measurement performed using a combined fit of $\mathit CP$-violation, mixing and lifetimes.
4  Measurement performed using an inclusive reconstruction and ${{\mathit B}}$ flavor identification technique.
5  Measured mean life using fully reconstructed decays.
6  Events are selected in which one ${{\mathit B}}$ meson is fully reconstructed while the second ${{\mathit B}}~$meson is reconstructed inclusively.
7  Data analyzed using ${{\mathit D}}$ / ${{\mathit D}^{*}}{{\mathit \ell}}$ X event vertices.
8  Data analyzed using charge of secondary vertex.
9  ABREU 1995Q assumes B( ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{**-}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{\mathit \ell}}}}}$ ) = $3.2$ $\pm1.7\%$.
10  Data analyzed using vertex-charge technique to tag ${{\mathit B}}$ charge.
11  Combined result of ${{\mathit D}}$/ ${{\mathit D}^{*}}{{\mathit \ell}}$ X analysis and fully reconstructed ${{\mathit B}}$ analysis.
12  Combined ABREU 1995Q and ADAM 1995 result.
  References:
AAIJ 2014E
JHEP 1404 114 Measurements of the ${{\mathit B}^{+}},{{\mathit B}^{0}},{{\mathit B}_{{s}}^{0}}$ Meson and ${{\mathit \Lambda}_{{b}}^{0}}$ Baryon Lifetimes
AALTONEN 2011B
PR D83 032008 Measurement of the ${{\mathit B}^{-}}$ Lifetime using a Simulation Free Approach for Trigger Bias Correction
AALTONEN 2011
PRL 106 121804 Measurement of ${\mathit {\mathit b}}$ Hadron Lifetimes in Exclusive Decays Containing a ${{\mathit J / \psi}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
ABE 2005B
PR D71 072003 Improved Measurement of $\mathit CP$ Violation Parameters sin2$\phi _{1}$ and $\vert {{\mathit \lambda}}\vert $, ${{\mathit B}}$ Meson Lifetimes, and ${{\mathit B}^{0}}−{{\overline{\mathit B}}^{0}}$ Mixing Parameter $\Delta {{\mathit m}_{{d}}}$
ABDALLAH 2004E
EPJ C33 307 A Precise Measurement of the ${{\mathit B}^{+}}$, ${{\mathit B}^{0}}$ and Mean b-hadron Lifetime with the DELPHI Detector at LEP I
ABE 2002H
PRL 88 171801 Precise Measurement of ${{\mathit B}}$ Meson Lifetimes with Hadronic Decay Final States
ACOSTA 2002C
PR D65 092009 Measurement of ${{\mathit B}}$ Meson Lifetimes using Fully Reconstructed ${{\mathit B}}$ Decays Produced in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.8 TeV
AUBERT 2001F
PRL 87 201803 Measurement of the ${{\mathit B}^{0}}$ and ${{\mathit B}^{+}}$ Meson Lifetimes with Fully Reconstructed Hadronic Final States
BARATE 2000R
PL B492 275 Measurement of the ${{\overline{\mathit B}}^{0}}$ and ${{\mathit B}^{-}}$ Meson Lifetimes
ABBIENDI 1999J
EPJ C12 609 Measurement of the ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ Lifetimes and Search for $\mathit CP(T)$ Violation using Reconstructed Secondary Vertices
ABE 1998B
PR D57 5382 Measurement of ${{\mathit B}}$ Hadron Lifetimes using ${{\mathit J / \psi}}$ Final States at CDF
ABE 1998Q
PR D58 092002 Improved Measurement of the ${{\mathit B}^{-}}$ and ${{\overline{\mathit B}}^{0}}$ Meson Lifetimes using Semileptonic Decays
ACCIARRI 1998S
PL B438 417 Upper Limit on the Lifetime Difference of Short- and Long-Lived ${{\mathit B}_{{s}}^{0}}$ Mesons
ABE 1997J
PRL 79 590 Measurement of the ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ Lifetimes using Topological Reconstruction of Inclusive and Semileptonic Decays
ABE 1996C
PRL 76 4462 Measurement of the ${{\mathit B}^{-}}$ and ${{\overline{\mathit B}}^{0}}$ Meson Lifetimes using Semileptonic Decays
BUSKULIC 1996J
ZPHY C71 31 Improved Measurement of the ${{\overline{\mathit B}}^{0}}$ and ${{\mathit B}^{-}}$ Meson Lifetimes
ABREU 1995Q
ZPHY C68 13 A Measurement of ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ Lifetimes using ${{\overline{\mathit D}}}{{\mathit \ell}^{+}}$ Events
ADAM 1995
ZPHY C68 363 Lifetimes of Charged and Neutral ${{\mathit B}}$ Hadrons using Event Topology
AKERS 1995T
ZPHY C67 379 Improved Measurements of the ${{\mathit B}^{0}}$ and ${{\mathit B}^{+}}$ Meson Lifetimes
ABE 1994D
PRL 72 3456 Measurement of the ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ Meson Lifetimes
ABREU 1993G
PL B312 253 A Measurement of the Mean Lifetimes of Charged and Neutral ${{\mathit B}}$ Hadrons
ABREU 1993D
ZPHY C57 181 A Measurement of ${{\mathit B}}$ Meson Production and Lifetime using ${{\mathit D}}{{\mathit \ell}^{-}}$ Events in ${{\mathit Z}^{0}}$ Decays
ACTON 1993C
PL B307 247 Measurement of the ${{\mathit B}^{0}}$ and ${{\mathit B}^{+}}$ Lifetime
BUSKULIC 1993D
PL B307 194 Measurement of the ${{\overline{\mathit B}}^{0}}$ and ${{\mathit B}^{-}}$ Meson Lifetime