Precise measurement of the b-quark fragmentation function in Z0 boson decays |
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Authors: | Saxton Schalk Schumm Schwiening Serbo Shapiro Sinev Snyder Staengle Stahl Stamer Steiner Su Suekane Sugiyama Swartz Taylor Thom Usher Va'vra Verdier Wagner Waite Walston Wang Weidemann |
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Institution: | Nagoya University, Chikusa-ku, Nagoya, 464 Japan. |
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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 SLAC Large Detector experiment. 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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