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Zou","submitted_at":"2003-06-24T01:24:53Z","abstract_excerpt":"Based on 1.35 million polarized $\\Xi^{-}$ events, we measure the parameter $\\phi_{\\Xi}$ to be $-1.61^{\\circ} \\pm 2.66^{\\circ} \\pm 0.37^{\\circ}$ for $\\Xi^{-} \\to \\Lambda \\pi^{-}$ decay. New results for the parameters $\\beta_{\\Xi}$ and $\\gamma_{\\Xi}$ are also presented. Assuming that the CP-violating phase-shift difference is negligible, we deduce the strong phase-shift difference between the P-wave and S-wave amplitudes of the $\\Lambda\\pi$ final state to be $3.17^{\\circ} \\pm 5.28^{\\circ} \\pm 0.73^{\\circ}$. 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