Measurement of the Ds lifetime

Preprint

1 June 2001

preprint
Published by arXiv in arXiv

Abstract

We report a 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.

Keywords

SELEX EXPERIMENT
MESON LIFETIME
RECONSTRUCTED
SPECTROMETER
MEASUREMENT
GEV/C SIGMA
DS LIFETIME
DECAY

All Related Versions

Version 1, 2001-06-01, ArXiv
Version 2, 2001-06-22, ArXiv
Published version: Physics Letters B, 523 (1-2), 22.

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