#### ${{\boldsymbol \Xi}^{-}}$ MEAN LIFE

Measurements with an error $>$ $0.2 \times 10^{-10}$ s or with systematic errors not included have been omitted.
VALUE ($10^{-10}$ s) EVTS DOCUMENT ID TECN  COMMENT
 $\bf{ 1.639 \pm0.015}$ OUR AVERAGE
$1.65$ $\pm0.07$ $\pm0.12$ $2478$ $\pm68$
 2006 E
DLPH from ${{\mathit Z}}$ decays
$1.652$ $\pm0.051$ 32k
 1984
SPEC Hyperon beam
$1.665$ $\pm0.065$ 41k
 1979
SPEC Hyperon beam
$1.609$ $\pm0.028$ 4286
 1978
HBC 4.2 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}{{\mathit p}}$
$1.67$ $\pm0.08$
 1975
DBC 4.9 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}{{\mathit d}}$
$1.63$ $\pm0.03$ 4303
 1974
HBC 1.75 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}{{\mathit p}}$
$1.73$ ${}^{+0.08}_{-0.07}$ 680
 1972
HLBC 2.1 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}$
$1.61$ $\pm0.04$ 2610
 1969
HBC
$1.80$ $\pm0.16$ 299
 1966
HBC
$1.70$ $\pm0.12$ 246
 1965 B
HBC
$1.69$ $\pm0.07$ 794
 1964
HBC
$1.86$ ${}^{+0.15}_{-0.14}$ 517
 1963 D
FBC
References:
 ABDALLAH 2006E
PL B639 179 Masses, Lifetimes and Production Rates of ${{\mathit \Xi}^{-}}$ and ${{\overline{\mathit \Xi}}^{+}}$ at LEP 1
 BOURQUIN 1984
NP B241 1 Measurement of ${{\mathit \Omega}^{-}}$ Decay Properties in the CERN SPS Hyperon Beam
 BOURQUIN 1979
PL 87B 297 A Measurement of the ${{\mathit \Omega}^{-}}$ Lifetime
 HEMINGWAY 1978
NP B142 205 ${{\mathit \Omega}^{-}}$ Produced in ${{\mathit K}^{-}}{{\mathit p}}$ Reactions at 4.2 ${\mathrm {GeV/}}\mathit c$
 DIBIANCA 1975
NP B98 137 Study of ${{\mathit \Xi}^{-}}$ and ${{\mathit \Omega}^{-}}$ Production from ${{\mathit K}^{-}}{{\mathit n}}$ and ${{\mathit K}^{-}}{{\mathit p}}$ Interactions at 4.93 ${\mathrm {GeV/}}\mathit c$
 BALTAY 1974
PR D9 49 Properties of ${{\mathit \Xi}^{-}}$ and ${{\mathit \Xi}^{0}}$ Hyperons
 MAYEUR 1972
NP B47 333 A Measurement of the ${{\mathit \Xi}}$ Hyperon Lifetimes and $\alpha$ Parameters
 DAUBER 1969
PR 179 1262 Production and Decay of Cascade Hyperons
 LONDON 1966
PR 143 1034 ${{\mathit K}^{-}}{{\mathit p}}$ Interaction at 2.24 BeV
 PJERROU 1965B
PRL 14 275 Electromagnetic ${{\mathit \Xi}^{*}{(1530)}}$ Mass Difference
 HUBBARD 1964
PR 135 B183 Lifetimes of the ${{\mathit \Xi}^{-}}$ and ${{\mathit \Xi}^{0}}$ Hyperons
 JAUNEAU 1963D
Siena Conf. 4 Direct Measurement of ${{\mathit \Xi}^{-}}$ and ${{\mathit \Xi}^{0}}$ Mean Lives