Abstract
A sample of signal events obtained with of collisions at collected by the LHCb experiment is used to measure the branching fraction and polarization amplitudes of the decay, with . The mass spectrum of the candidates in the peak is dominated by the contribution. Subtracting the nonresonant component, the branching fraction of is , where the first uncertainty is statistical and the second is systematic. A fit to the angular distribution of the decay products yields the polarization fractions and .
- Received 3 August 2012
DOI:https://doi.org/10.1103/PhysRevD.86.071102
This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
© 2012 CERN, for the LHCb Collaboration