Measurement of the B hadron energy distribution in Z0 decays

We have measured the B hadron energy distribution in Z0 decays using a sample of semi-leptonic B decays recorded in the SLD experiment at SLAC. The energy of each tagged B hadron was reconstructed using information from the lepton and a partially reconstructed charm-decay vertex. We compared the scaled energy distribution with several models of heavy quark fragmentation. The average scaled energy of primary B hadrons was found to be <x_E_B> = 0.716 +- 0.011 (stat.) +0.022 -0.021 (syst.).

Note:

replaces previous version with improved PS figures

11.30.Hv
13.38.Dg
12.38.Qk
electron positron: colliding beams
electron positron: annihilation
Z0: electroproduction
Z0: hadronic decay
B: energy spectrum
B: semileptonic decay
quark: fragmentation

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