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Measurement of the Ds lifetime

M. Iori
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Abstract

We report precise measurement of the Ds meson lifetime. The data were taken by the SELEX experiment (E781) spectrometer using 600 GeV/c Sigma-, pi- and p beams. The measurement has been done using 918 reconstructed Ds. The lifetime of the Ds is measured to be 472.5 +- 17.2 +- 6.6 fs, using K*(892)0K+- and phi pi+- decay modes. The lifetime ratio of Ds to D0 is 1.145+-0.049.

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M. Iori. 2001-06-22. Measurement of the Ds lifetime. https://doi.org/10.1016/s0370-2693(01)01320-x

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