SN0444 : Determining the Lifetime of Charged Kaons from Kinks in STAR

Author(s):Benjamin Norman and Spyridon Margetis (Kent State University)
Date:Dec. 2, 2003
File(s):sn0444.ps.gz| sn0444.pdf
Abstract:The determination of the proper mean lifetime for charged Kaons in STAR is complicated by both limited lifetime acceptance and momentum-dependent cuts. A number of more elegant mathematical approaches were investigated to compensate for these effects, but in the end it was seen that the simplest and most reliable approach is a thorough analysis of simulated tracks embedded in a real event. This approach should be effective in any collider experiment.
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Category:PWG