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.
@article{arxiv.1301.0284,
title = {DeltaGamma_s Measurement at the Upsilon(5S) from Belle},
author = {Sevda Esen},
journal= {arXiv preprint arXiv:1301.0284},
year = {2019}
}
Comments
Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle, University of Cincinnati, USA, 28 September - 2 October 2012