Abstract
The first amplitude analysis of the decay is reported based on a data sample corresponding to an integrated luminosity of of collisions recorded in 2011 and 2012 with the LHCb detector. The data are found to be best described by a coherent sum of five resonant structures plus a nonresonant component and a contribution from -wave rescattering. The dominant contributions in the and systems are the nonresonant and the amplitudes, respectively, with fit fractions around 30%. For the rescattering contribution, a sizable fit fraction is observed. This component has the largest asymmetry reported to date for a single amplitude of , where the first uncertainty is statistical and the second systematic. No significant violation is observed in the other contributions.
- Received 12 June 2019
- Revised 15 October 2019
DOI:https://doi.org/10.1103/PhysRevLett.123.231802
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
© 2019 CERN, for the LHCb Collaboration