B decays in the upsilon expansion

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Theoretical predictions for B decay rates are rewritten in terms of the Upsilon meson mass instead of the b quark mass, using a modified perturbation expansion. The theoretical consistency is shown both at low and high orders. This method improves the behavior of the perturbation series for inclusive and exclusive decay rates, and the largest theoretical error in the predictions coming from the uncertainty in the quark mass is eliminated. Applications to the determination of CKM matrix elements, moments of inclusive decay distributions, and the {bar B} {yields} X{sub s}{gamma} photon spectrum are discussed.

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211 Kilobytes pages

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Ligeti, Zoltan December 14, 1999.

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Theoretical predictions for B decay rates are rewritten in terms of the Upsilon meson mass instead of the b quark mass, using a modified perturbation expansion. The theoretical consistency is shown both at low and high orders. This method improves the behavior of the perturbation series for inclusive and exclusive decay rates, and the largest theoretical error in the predictions coming from the uncertainty in the quark mass is eliminated. Applications to the determination of CKM matrix elements, moments of inclusive decay distributions, and the {bar B} {yields} X{sub s}{gamma} photon spectrum are discussed.

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211 Kilobytes pages

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  • International Europhysics Conference on High Energy Physics 99, Tampere (FI), 07/15/1999--07/21/1999

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  • Report No.: FERMILAB-Conf-99/336-T
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 15108
  • Archival Resource Key: ark:/67531/metadc624916

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Office of Scientific & Technical Information Technical Reports

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  • December 14, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 1, 2016, 3:37 p.m.

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Ligeti, Zoltan. B decays in the upsilon expansion, article, December 14, 1999; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc624916/: accessed November 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.