Summary
This report details the present knowledge about the individual properties of the different beauty particles using the results of the LEP experiments. Individual lifetimes for B 0d and B+ are found to be equal within 10%, whilst a 15% precision is reached for B 0s and Λb. The Λb lifetime is found to be smaller 0 than τB+ with a 2.7σ significance. The production rate of each of these particles is measured at the 20% level. Preliminary evidence for Ξb production has been reported. Finally, the B 0s meson mass has been measured to be 5373±4 MeV/c2.
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Wormser, G. LEP measurements on production, mass, lifetime of beauty particles. Nuov Cim A 107, 2073–2084 (1994). https://doi.org/10.1007/BF02823601
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DOI: https://doi.org/10.1007/BF02823601