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Lifetime and production rate of beauty baryons from Z decays

  • Experimental Physics
  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

The production and decay of beauty baryons (b-baryons) have been studied using 1.7×106 Z hadronic decays collected by the DELPHI detector at LEP. Three different techniques were used to identify theb-baryons. The first method used pairs of a Λ and a lepton to tag theb-baryon decay. The second method associated fully reconstructed ΛC baryons with leptons. The third analysis reconstructed theb-baryon decay points by forming secondary vertices from identified protons and muons of opposite sign. Using these methods the following production rates were measured:

The averageb-baryon lifetime was determined to be:

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CICYT-AEN93-0832

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DELPHI Collaboration., Abreu, P., Adam, W. et al. Lifetime and production rate of beauty baryons from Z decays. Z. Phys. C - Particles and Fields 68, 375–390 (1995). https://doi.org/10.1007/BF01620713

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  • DOI: https://doi.org/10.1007/BF01620713

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