Abstract
Two recent publications, from the MAC[1] and Mark II[2] collaborations, have reported the somewhat surprising result that the lifetime of particles made up of b quarks is in the 1 to 2 picosecond range, or somewhat longer than the lifetimes of charm particles. Although the charm decays are favored transitions while those of b particles depend upon off-diagonal elements of the weak flavor mixing matrix, the smallness of the b decay rates in face of the large available phase space indicates that the off-diagonal elements are indeed very small. The possibility for complete determination of the mixing matrix was brought significantly nearer by the availability of the lifetime information; what is needed now is to reduce the uncertainty of the measurements, which was about 33% for both experiments. We describe here an extension of the b lifetime study with the MAC detector, incorporating some new data and improvements in the analysis.
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© 1984 Plenum Press, New York
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Ford, W.T. (1984). Improved b Lifetime Measurement from MAC. In: Chau, LL. (eds) Flavor Mixing in Weak Interactions. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2439-3_5
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DOI: https://doi.org/10.1007/978-1-4613-2439-3_5
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-9483-2
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