Symmetry relations for heavy-to-light meson form factors at large recoil

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1 Scopus citations


The description of large-recoil heavy-to-light meson form factors is reviewed in the framework of soft-collinear effective theory. At leading power in the heavy-quark expansion, three classes of approximate symmetry relations arise. The relations are compared to experimental data for D → K* and Ds → φ form factors, and to light-cone QCD sum rule predictions for B → π and B → ρ form factors. Implications for the extraction of |Vub| from semileptonic B → ρ decays are discussed.

Original languageEnglish
Pages (from-to)184-191
Number of pages8
JournalNuclear Physics B - Proceedings Supplements
Issue number1 SPEC. ISS.
StatePublished - Feb 2006

Bibliographical note

Funding Information:
Acknowledgments I thank T. Becher and M. Neubert for collaboration on projects underlying the topics discussed here. Research supported by the Department of Energy under Grant DE-AC02-76SF00515.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics


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