Abstract
Branching fraction and effective lifetime measurements of the rare decay and searches for the decays and are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a luminosity of . The branching fraction and the effective lifetime are measured, where the first uncertainty is statistical and the second systematic. No significant signal for and decays is found and upper limits and at the 95% C.L. are determined, where the latter is limited to the range . The results are in agreement with the standard model expectations.
- Received 24 August 2021
- Accepted 8 December 2021
DOI:https://doi.org/10.1103/PhysRevLett.128.041801
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.
See more in Physics