DOI 10.1007/s100529800775
Perturbative QCD study on the
photonic penguin contributions to the decay 
Fu-Guang Cao1,2,3 - Tao Huang1,2
1 CCAST (World Laboratory), P.O. Box 8730,
Beijing 100080, P. R. China
2 Institute of High Energy Physics, Academia Sinica,
P.O. Box 918, Beijing 100039, P. R. China
(e-mail: caofg@itp.ac.cn)
3 Institute of Theoretical Physics, Academia Sinica,
P.O. Box 2735, Beijing 100080, P. R. China
Received: 8 July 1997 / Published online: 23 February 1998
Abstract
Including corrections of order O(mK*/mB),
we present an analysis of photonic penguin contributions
to the decay in the perturbative QCD framework.
Employing several models of the meson wave functions,
we demonstrate that the corrections of O(mK*/mB)
are enhanced and will provide substantial contributions to the decay
because of the B meson wave function being sharply peaked
(bound state effect).
The numerical predictions for the corrections are about
which depend on the non-perturbative inputs such as the meson wave
functions and the b-quark mass.
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