Studies of the decay B+/- -->D(CP)K+/-.
We report studies of the Cabibbo-suppressed decay B+/--->D(CP)K+/-, where D(CP) denotes CP eigenstates of the D0-D0; system. The analysis is based on a 29.1 fb(-1) sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi(+/-), of B(B--->D1K-)/B(B--->D1pi(-))=0.125+/-0.036+/-0.010 and B(B--->D2K-)/B(B--->D2pi(-))=0.119+/-0.028+/-0.006; the index 1 (2) denotes the CP=+1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/--->D(CP)K+/-, finding A(1)=0.29+/-0.26+/-0.05 and A(2)=-0.22+/-0.24+/-0.04.
Abe
K
K
High Energy Accelerator Research Organization (KEK), Tsukuba.
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Ahn
Byoung Sup
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Akatsu
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Asano
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Chao
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Cheon
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Chistov
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Choi
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Danilov
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Dong
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Eidelman
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Enari
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Fukunaga
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Gabyshev
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Guo
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Jang
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Kim
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Kinoshita
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Krokovny
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Kulasiri
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Kumar
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Kwon
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Leder
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Lee
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Limosani
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MacNaughton
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Moloney
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Ostrowicz
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Pakhlov
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Rybicki
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