Abstract
An angular analysis of the decay is presented using a dataset corresponding to an integrated luminosity of of collision data collected with the LHCb experiment. The full set of -averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the system in an -wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters.
- Received 11 March 2020
- Accepted 28 May 2020
DOI:https://doi.org/10.1103/PhysRevLett.125.011802
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.
© 2020 CERN, for the LHCb Collaboration
Physics Subject Headings (PhySH)
synopsis
Additional Data Confirms Particle Anomaly
Published 2 July 2020
The LHCb Collaboration increases the statistical significance of a result relating to the decay rate of mesons that diverges from standard model predictions.
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