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A test of the flavour independence of the strong interaction for five flavours

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Il Nuovo Cimento A (1965-1970)

Summary

We report on a measurement of the ratio of the strong coupling constant αs (M Z 0) for various data samples with different quark flavour compositions obtained from e+e− annihilations at LEP. We obtain the following results for the relative value of αs:α bs /α udscs =1.017±0.036, α cs /α udsbs =0.926±0.089, α ss /α udchs =1.158±0.164, α udss /α cbs =1.024±0.085, with quadratically combined statistical and systematic errors. We do not find any dependence of the strong coupling constant on flavour.

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Authors and Affiliations

  1. Physikalisches Institut, Universität Heidelberg, 69120, Heidelberg, Germany

    R. Ströhmer

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  1. R. Ströhmer
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Opal Collaboration

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Opal Collaboration., Ströhmer, R. A test of the flavour independence of the strong interaction for five flavours. Nuov Cim A 107, 2055–2061 (1994). https://doi.org/10.1007/BF02823598

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  • DOI: https://doi.org/10.1007/BF02823598

PACS 13.90

PACS 01.30.Cc

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