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Determination of the b -quark mass and nonperturbative parameters in semileptonic B -meson decays at BABAR⋆

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Abstract

Knowing the mass of the b -quark is essential to the study of the structure and decays of B -mesons as well as to future tests of the Higgs mechanism of mass generation. We present recent preliminary measurements of the b -quark mass and related nonperturbative parameters from moments of kinematic distributions in charmed and charmless semileptonic B -meson decays. Their determination from charmless semileptonic B -meson decays is the first measurement in this mode. The data were collected by the BABAR detector at the PEP-II asymmetric-energy e + e - -collider at the Stanford Linear Accelerator Center at a center-of-mass energy of 10.58GeV.

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Authors and Affiliations

  1. Ernest Orlando Lawrence Berkeley National Laboratory and University of California, 94720, Berkeley, CA, USA

    K. Tackmann

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  1. K. Tackmann
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Correspondence to K. Tackmann.

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Z.-E. Meziani

Original article based on material presented at HADRON 2007.

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Tackmann, K. Determination of the b -quark mass and nonperturbative parameters in semileptonic B -meson decays at BABAR⋆ . Eur. Phys. J. A 38, 137–140 (2008). https://doi.org/10.1140/epja/i2008-10645-y

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  • DOI: https://doi.org/10.1140/epja/i2008-10645-y

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