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arXiv · hep-ex/9912058

Precise measurement of the b-quark fragmentation function in Z0 boson decays

The SLD Collaboration·Kenji Abe
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Abstract

We have developed a new technique for inclusive reconstruction of the energy of B hadrons. The excellent efficiency and resolution of this technique allow us to make the most precise determination of the b-quark fragmentation function, using e+e- -> Z0 decays recorded in the SLD experiment at SLAC. We compared our measurement with the predictions of a number of fragmentation models. We excluded several of these models and measured the average scaled energy of weakly-decaying B hadrons to be =0.714+-0.005(stat)+-0.007(syst) +-0.002(model dependence).

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The SLD Collaboration, Kenji Abe. 1999-12-23. Precise measurement of the b-quark fragmentation function in Z0 boson decays. https://doi.org/10.1103/physrevlett.84.4300

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