QED corrections to isospin-related decay rates of charged and neutral B mesons

Abstract

We estimate the isospin-violating QED radiative corrections to the charged-to-neutral ratios of the decay rates for B^+ and B^0 in non-leptonic B meson decays. In particular, these corrections are potentially important for precision measurement of the charged-to-neutral production ratio of B meson in e^+e^- annihilation. We calculate explicitly the QED corrections to the ratios of two different types of decay rates Γ(B^+ \to J/ψK^+)/Γ(B^0 \to J/ψK^0) and Γ(B^+ \to D^+_S \bar{D^0})/Γ(B^0 \to D^+_S D^-) taking into account the form factors of the mesons based on the vector meson dominance model, and compare them with the results obtained for the point-like mesons.

7 pages, 9 eps figures

Cited by in corpus (2)

• Measurement of the Branching Fraction of Upsilon(4S) --> B0B0bar
• Isospin in $B$ Decays and the $(B^0{\bar{B}}^0)/(B^{+}{B}^{-})$ Production Ratio