Study of the fragmentation of b quarks into B mesons at the Z peak

ALEPH Collaboration, The and Heister, A. and Bouhova-Thacker, Evelina and Bowdery, Christopher and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger (2001) Study of the fragmentation of b quarks into B mesons at the Z peak. Physics Letters B, 512 (1-2). pp. 30-48. ISSN 0370-2693

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The fragmentation of b quarks into B mesons is studied with four million hadronic Z decays collected by the ALEPH experiment during the years 1991–1995. A semi-exclusive reconstruction of B→ℓνD(★) decays is performed, by combining lepton candidates with fully reconstructed D(★) mesons while the neutrino energy is estimated from the missing energy of the event. The mean value of xBwd, the energy of the weakly-decaying B meson normalised to the beam energy, is found to be using a model-independent method; the corresponding value for the energy of the leading B meson is . The reconstructed spectra are compared with different fragmentation models.

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Journal Article
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Physics Letters B
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07 May 2013 10:49
Last Modified:
21 Nov 2022 23:39