Lattice constrained parametrizations of form-factors for semileptonic and rare radiative B decays - INSPIRE

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Lattice constrained parametrizations of form-factors for semileptonic and rare radiative B decays

UKQCD

Collaboration

•

Luigi Del Debbio
(
- Marseille, CPT
)

Aug, 1997

13 pages

Published in:

Phys.Lett.B 416 (1998) 392-401

e-Print:

hep-lat/9708008 [hep-lat]

DOI:

10.1016/S0370-2693(97)01350-6

Report number:

CPT-97-P-3505,
SHEP-97-13,
UG-DFM-4-97

Experiments:

LATTICE-UKQCD

View in:

ADS Abstract Service

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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.

Note:

14 pages, LaTeX, 5 eps figures, uses epsf and array packages. Version accepted for publication in Physics Letters B Report-no: CPT-97/P.3505, SHEP-97/13, UG-DFM-4/97

13.20.He
12.15.Hh
12.38.Gc
12.39.Hg
Semileptonic and rare radiative decays of B mesons
Determination of Cabibbo-Kobayashi-Maskawa matrix elements
Lattice QCD calculation
Heavy quark effective theory
Semileptonic and rare radiative decays of B mesons
lattice field theory

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