A High Statistics Measurement of the Lambdac+ Lifetime
arXiv:hep-ex/0202001 · doi:10.1103/PhysRevLett.88.161801
Abstract
A high statistics measurement of the Lambdac+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis technique with particular attention to the determination of the systematic uncertainty. The measured value of 204.6 +/- 3.4 (stat.) +/- 2.5 (syst.) fs from 8034 +/- 122 Lambdac -> pKpi decays represents a significant improvement over the present world average.
Submitted to Physical Review Letters