Eur. Phys. J. C (2003) 29: 515-519
https://doi.org/10.1140/epjc/s2003-01242-1
https://doi.org/10.1140/epjc/s2003-01242-1
theoretical physics
Form factor for penguin-induced $B \rightarrow \eta$ transition in light cone QCD sum rule
Physics Department, Middle East Technical University, 06531, Ankara, Turkey
* e-mail: taliev@metu.edu.tr
We calculate the penguin-induced form factor for the $B \rightarrow \eta \ell^+ \ell^- $ decay. This form factor is calculated by light cone QCD sum rules, including contributions from wave functions up to twist-4 as well as mass corrections of the light $\eta$ meson.
© Springer-Verlag, 2003
