Lattice-Constrained Parametrizations of Form Factors for Semileptonic and Rare Radiative B Decays

UKQCD Collaboration, Luigi Del Debbio, Jonathan flynn, Laurent Lellouch, Juan Nieves

Research output: Contribution to journalArticlepeer-review

Abstract

We describe the form factors for B to rho lepton neutrino and B to K* gamma decays with just two parameters and the two form factors for B to pi lepton neutrino with a further two or three parameters. The parametrizations are consistent with heavy quark symmetry, kinematic constraints and lattice results, which we use to determine the parameters. In addition, we test versions of the parametrizations consistent (or not) with light-cone sum rule scaling relations at q^2=0.
Original languageEnglish
Number of pages392
JournalPhysics Letters B
Volume416
Issue number3-4
DOIs
Publication statusPublished - 13 Aug 1997

Keywords

  • hep-lat
  • Semileptonic and rare radiative decays of B mesons
  • Determination of Cabibbo-Kobayashi-Maskawa matrix elements
  • Lattice QCD calculation
  • Heavy quark effective theory

Fingerprint

Dive into the research topics of 'Lattice-Constrained Parametrizations of Form Factors for Semileptonic and Rare Radiative B Decays'. Together they form a unique fingerprint.

Cite this