Measurement of branching fraction and final-state asymmetry for the B¯0→K0SK∓π± decay

Lai, Y T and Giri, Anjan Kumar (2019) Measurement of branching fraction and final-state asymmetry for the B¯0→K0SK∓π± decay. arXiv. pp. 1-17.

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Abstract

We report a measurement of the branching fraction and final-state asymmetry for the B¯0→K0SK∓π± decays. The analysis is based on a data sample of 711 fb−1 collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We obtain a branching fraction of (3.60±0.33±0.15)×10−6 and a final-state asymmetry of (−8.5±8.9±0.2)%, where the first uncertainties are statistical and the second are systematic. Hints of peaking structures are seen in the differential branching fractions measured as functions of Dalitz variables.

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