Measurement of Branching Fractions for B → χ c 1 ( 2 ) K ( K ∗ ) at Belle Belle
نویسندگان
چکیده
We have measured the branching fractions for the exclusive decay modes B → χc1(2)K(K ∗) using a 140 fb data sample collected by the Belle detector at the KEKB asymmetric-energy e+e− collider. The measured branching fractions for B+ → χc1K, B0 → χc1K, B0 → χc1K and B+ → χc1K decay modes are (4.5 ± 0.2 ± 0.5) × 10−4, (3.5 ± 0.3 ± 0.5) × 10−4, (3.1 ± 0.3 ± 0.7) × 10−4 and (4.1 ± 0.6 ± 0.9) × 10−4, respectively, where the first error is statistical and the second error is systematic. We do not observe statistically significant signals for the
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