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Measurement of CP-Averaged Observables in the B0K*0μ+μ Decay

R. Aaij et al. (LHCb Collaboration)
Phys. Rev. Lett. 125, 011802 – Published 2 July 2020
Physics logo See synopsis: Additional Data Confirms Particle Anomaly
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Abstract

An angular analysis of the B0K*0(K+π)μ+μ decay is presented using a dataset corresponding to an integrated luminosity of 4.7fb1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the K+π system in an S-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.

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  • 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)

Particles & Fields

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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 B0mesons that diverges from standard model predictions.

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Vol. 125, Iss. 1 — 3 July 2020

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