Abstract
A measurement of violation in the decay is reported using data corresponding to an integrated luminosity of collected with the LHCb experiment at a center-of-mass energy of . The asymmetry is measured to be , where the uncertainties are statistical, systematic, and due to an external input. This is the most precise measurement of this quantity. It confirms and significantly enhances the observed anomalous difference between the direct asymmetries of the and decays, known as the puzzle.
- Received 23 December 2020
- Accepted 28 January 2021
- Corrected 4 March 2021
DOI:https://doi.org/10.1103/PhysRevLett.126.091802
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.
© 2021 CERN, for the LHCb Collaboration
Physics Subject Headings (PhySH)
Corrections
4 March 2021
Correction: The first decay term appearing in the last sentence of the abstract contained an error and has been fixed.