Further remarks on isospin breaking in charmless semileptonic B decays

Details Further remarks on isospin breaking in charmless semileptonic B decays Further remarks on isospin breaking in charmless semileptonic B decays

1997-09-05

arxiv.org/abs/hep-ph/9709266v1

Phys.Rev.D56:6025-6027,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 7 pages, 1 .ps figure, to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.56.6025

We consider the isospin breaking corrections to charmless semileptonic decays of B mesons. Both, the recently measured branching ratios of exclusive decays by the CLEO Collaboration and the end-point reion of the inclusive lepton spectrum in form factor models, can be affected by these corrections. Isospin corrections can affect the determination of |V_ub| from exclusive semileptonic B decays at a level comparable to present statistical uncertainties.

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