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Form factors for semi-leptonic B decays

  • Ran Zhou
  • , Steven Gottlieb
  • , Jon A. Bailey
  • , Daping Du
  • , Aida X. El-Khadra
  • , R. D. Jain
  • , Andreas S. Kronfeld
  • , Ruth S. Van De Water
  • , Yuzhi Liu
  • , Yannick Meurice

Research output: Contribution to journalConference articlepeer-review

Abstract

We report on form factors for the B → Kl+l- semi-leptonic decay process. We use several lattice spacings from a = 0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These ensembles allow good control of the chiral and continuum extrapolations. The b-quark is treated as a clover quark with the Fermilab interpretation. We update our results for fk and f, or, equivalently, f+ and f0. In addition, we present new results for the tensor form factor fT . Model independent results are obtained based upon the z-expansion.

Original languageEnglish (US)
Article number105
JournalProceedings of Science
VolumePart F130497
StatePublished - 2012
Event30th International Symposium on Lattice Field Theory, Lattice 2012 - Cairns, Australia
Duration: Jun 24 2012Jun 29 2012

ASJC Scopus subject areas

  • General

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