${{\mathit \Omega}^{-}}$ MEAN LIFE INSPIRE search

Measurements with an error $>$ $0.1 \times 10^{-10}$ s have been omitted. The fit assumes the ${{\mathit \Omega}^{-}}$ and ${{\overline{\mathit \Omega}}^{+}}$ mean lives are the same, and averages them together.

S024T

VALUE ($ 10^{-10} $ s)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 0.821 \pm0.011}$

OUR FIT

$\bf{ 0.821 \pm0.011}$

OUR AVERAGE

$0.817$ $\pm0.013$ $\pm0.018$

6934

CHAN

1998

E756

${{\mathit p}}{}^{}\mathrm {Be}$, 800 GeV

$0.811$ $\pm0.037$

1096

LUK

1988

SPEC

${{\mathit p}}{}^{}\mathrm {Be}$ 400 GeV

$0.823$ $\pm0.013$

12k

BOURQUIN

1984

SPEC

SPS hyperon beam

• • • We do not use the following data for averages, fits, limits, etc. • • •

$0.822$ $\pm0.028$

2437

BOURQUIN

1979

SPEC

See BOURQUIN 1984

References:

CHAN

1998

PR D58 072002

Measurement of the Properties of the ${{\overline{\mathit \Omega}}^{+}}$ and ${{\mathit \Omega}^{-}}$ Hyperons

LUK

1988

PR D38 19

New Measurement of Properties of ${{\mathit \Omega}^{-}}$ Hyperon

BOURQUIN

1984

NP B241 1

Measurement of ${{\mathit \Omega}^{-}}$ Decay Properties in the CERN SPS Hyperon Beam

Also

PL 87B 297

A Measurement of the ${{\mathit \Omega}^{-}}$ Lifetime

BOURQUIN

1979B

PL 88B 192

First Measurement of the ${{\mathit \Omega}^{-}}$ Decay Branching Ratios