6533b857fe1ef96bd12b4593
RESEARCH PRODUCT
Lattice-constrained parametrizations of form factors for semileptonic and rare radiative B decays
Ukqcd CollaborationL Del DebbioJ FlynnL LellouchJ Nievessubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics - Lattice (hep-lat)High Energy Physics::Phenomenologyhep-latLattice QCD calculationFOS: Physical sciencesFísicaAtomic and Molecular Physics and OpticsSemileptonic and rare radiative decays of B mesonsHigh Energy Physics - LatticeDetermination of Cabibbo-Kobayashi-Maskawa matrix elementsLattice (order)Radiative transferHigh Energy Physics::ExperimentSum rule in quantum mechanicsNeutrinoScalingHeavy quark effective theoryTwo-formLeptondescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-08-28 |