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Study of exclusive radiative B meson decays
Ammar, Raymond G. Bean, Alice Besson, David Zeke Davis, Robin E. P. Kwak, Nowhan Zhao, X.
Ammar, Raymond G.
Bean, Alice
Besson, David Zeke
Davis, Robin E. P.
Kwak, Nowhan
Zhao, X.
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Abstract
We have studied exclusive, radiative B meson decays to charmless mesons in 9.7 X 10(6) B (B) over bar decays accumulated with the CLEO detector. We measure B(B-0 --> K*(0)(892)gamma) = (4.55(-0.68)(+0.72) +/- 0.34) X 10(-5) and B(B+ --> K*(+)(892)gamma) = (3.76(-0.83)(+0.89) +/- 0.28) X 10(-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(-0.53)(+0.59) +/- 0.13) x 10(-5). No evidence for the decays B --> rho gamma and B-0 --> omega gamma is found and we limit B(B --> (rho/omega)gamma)/B(B --> K*(892)gamma) < 0.32 at 90% C.L.
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Date
2000-06
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AMERICAN PHYSICAL SOC
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Coan, TE, Fadeyev, V, et al. Study of exclusive radiative B meson decays. PHYSICAL REVIEW LETTERS. June 2000. 84(23) : 5283-5287