Abstract
In the CERN NA 32 experiment a high-resolution silicon vertex detector and a purely topological approach have been used to investigate various decays of charmed particles. We observe ∼620 fully reconstructed decays ofD 0 in 12 channels and determine the branching ratios. For fourD 0 decay modes involving a single (unseen) π0 the small and narrowD *+−D 0 mass difference is used to measure their branching ratios. We also observe ∼280 fully reconstructedD + decays in 10 channels, ∼90D + s decays in 11 channels as well as 160Λ c s and 18 decay channels ofD +. For theD + s , we measure the branching fractions within a subset of 16 three- and five-prong decay channels. For theΛ c s , we determine the branching fractions within a sample of 11 three- and five-prong decay channels, nearly all involving a proton.
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ACCMOR Collaboration., Barlag, S., Becker, H. et al. Measurement of various decay modes of charmed particlesD 0,D +,D + s andΛ c s . Z. Phys. C - Particles and Fields 48, 29–45 (1990). https://doi.org/10.1007/BF01565603
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DOI: https://doi.org/10.1007/BF01565603