Study of exclusive radiative B meson decays
We have studied exclusive, radiative B meson decays to charmless mesons in 9.7x10(6) B&Bmacr; decays accumulated with the CLEO detector. We measure B(B0-->K(*0)(892)gamma) = (4.55(+0.72)(-0. 68)+/-0.34)x10(-5) and B(B+-->K(*+)(892)gamma) = (3.76(+0.89)(-0. 83)+/-0.28)x10(-5). We have searched for CP asymmetry in B-->K(*)(892)gamma decays and measure A(CP) = +0.08+/-0.13+/-0.03. We report the first observation of B-->K(*)(2)(1430)gamma decays with a branching fraction of (1.66(+0.59)(-0.53)+/-0.13)x10(-5). No evidence for the decays B-->rhogamma and B0-->omegagamma is found and we limit B(B-->(rho/omega)gamma)/B(B-->K(*)(892)gamma)<0.32 at 90% C.L.
Brandenburg
G
Southern Methodist University, Dallas, Texas 75725, USA.
Ershov
A
Gao
YS
Kim
DY
Wilson
R
Browder
TE
Li
Y
Rodriguez
JL
Yamamoto
H
Bergfeld
T
Eisenstein
BI
Ernst
J
Gladding
GE
Gollin
GD
Hans
RM
Johnson
E
Karliner
I
Marsh
MA
Palmer
M
Plager
C
Sedlack
C
Selen
M
Thaler
JJ
Williams
J
Edwards
KW
Janicek
R