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${{\mathit \Omega}^{-}}$ DECAY PARAMETERS

$\alpha\mathrm {({{\mathit \Omega}^{-}})}$ $\alpha _{−}({{\mathit \Lambda}}$) FOR ${{\mathit \Omega}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{-}}$

INSPIRE   PDGID:

S024ALO

Some early results have been omitted.

VALUE EVTS DOCUMENT ID TECN  COMMENT $\bf{ 0.0115 \pm0.0015}$ OUR AVERAGE $0.0133$ $\pm0.0033$ $\pm0.0052$ 960k 1 CHEN 2005 HYCP ${{\mathit p}}{}^{}\mathrm {Cu}$, 800 GeV $0.0114$ $\pm0.0012$ $\pm0.0010$ 4.5M 1 LU 2005 A HYCP ${{\mathit p}}{}^{}\mathrm {Cu}$, 800 GeV • • We do not use the following data for averages, fits, limits, etc. • • $-0.018$ $\pm0.030$ 6953 CHAN 1998 E756 ${{\mathit p}}{}^{}\mathrm {Be}$, 800 GeV $-0.022$ $\pm0.051$ 1743 LUK 1988 SPEC ${{\mathit p}}{}^{}\mathrm {Be}$ 400 GeV $-0.016$ $\pm0.018$ 12k BOURQUIN 1984 SPEC SPS hyperon beam 1  The results of CHEN 2005 and LU 2005A are from different experimental runs.

References:

CHEN 2005 PR D71 051102 Measurement of the $\alpha $ Asymmetry Parameter for the ${{\mathit \Omega}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{-}}$ Decay LU 2005A PL B617 11 Observation of Parity Violation in the ${{\mathit \Omega}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{-}}$ Decay 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

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