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arXiv · 1301.0284

DeltaGamma_s Measurement at the Upsilon(5S) from Belle

Sevda Esen
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Abstract

Using the full Belle Upsilon(5S) data sample of 121 fb^-1we have measured exclusive branching fractions for the decays B_s^0 -> D_s^(*)+D_s^(*)-. 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 B_s.

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Sevda Esen. 2013-01-02. DeltaGamma_s Measurement at the Upsilon(5S) from Belle. https://arxiv.org/abs/1301.0284

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