DeltaGammas Measurement at the Upsilon(5S) from Belle
Abstract
Using the full Belle Upsilon(5S) data sample of 121 fb-1we have measured exclusive branching fractions for the decays Bs0 -> Ds(*)+Ds(*)-. Assuming these decay modes saturate decays to CP-even final states, the branching fraction determines the relative width difference between the CP-odd and -even eigenstates of the Bs.
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