Abstract
An improved measurement of the decay and searches for the decays and are performed at the LHCb experiment using data collected in proton-proton collisions at , 8 and 13 TeV, corresponding to integrated luminosities of 1, 2 and , respectively. The branching fraction and effective lifetime are measured to be and , respectively, where the uncertainties include both statistical and systematic contributions. No significant signal for and decays is found and the upper limits and at 95% confidence level are determined, where the latter is limited to the range . Additionally, the ratio between the and branching fractions is measured to be at 95% confidence level. The results are in agreement with the Standard Model predictions.
10 More- Received 23 August 2021
- Accepted 8 December 2021
DOI:https://doi.org/10.1103/PhysRevD.105.012010
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.
© 2022 CERN, for the LHCb Collaboration
Physics Subject Headings (PhySH)
synopsis
Analysis Finds B Meson Behaves Itself
Published 25 January 2022
A new analysis of Large Hadron Collider data measures rare decays of the B meson that behave according to the standard model.
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