# A measurement of the $K_s$ lifetime

Abstract : A measurement of the $\KS$ lifetime is presented using data recorded by the NA48 experiment at the CERN-SPS during 1998 and 1999. The $\KS$ lifetime is derived from the ratio of decay time distributions in simultaneous, collinear $\KS$ and $\KL$ beams, giving a result which is approximately independent of the detector acceptance and with reduced systematic errors. The result obtained is $\tauS=(0.89598 \pm 0.00048 \pm 0.00051)\E{-10}$\,s, where the first error is statistical and the second systematic.
Document type :
Preprints, Working Papers, ...

http://hal.in2p3.fr/in2p3-00011549
Contributor : Hélène Kerec <>
Submitted on : Tuesday, June 25, 2002 - 2:22:04 PM
Last modification on : Saturday, January 2, 2021 - 11:26:02 PM

### Citation

A. Lai, D. Marras, J R. Batley, A. Bevan, R S. Dosanjh, et al.. A measurement of the $K_s$ lifetime. 2002. ⟨in2p3-00011549⟩

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