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

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

1999-12-23

arxiv.org/abs/hep-ex/9912058v1

Phys.Rev.Lett.84:4300-4304,2000

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages including 2 figures; submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.84.4300

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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