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Measurement of Branching Fractions for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>η</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:msup><mml:mi>K</mml:mi><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mo>*</mml:mo><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:msup></mml:math>Decays
We report measurements of branching fractions for charged and neutral B→ηcK decays where the ηc meson is reconstructed in the K0SK±π∓, K+K−π0, K*0K−π+, and p¯p decay channels. The neutral B0 channel is a CP eigenstate and can be used to measure the CP violation parameter sin2φ1. We also report the …