A result published in March 2021 by the LHCb experiment, combining data collected between 2010-2016 and 2017-2018, found only a 1 in 1,000 chance that an observed difference between B meson decays into two muons versus an electron-positron pair was due to random statistical fluctuation.
Sources
- Vers un nouveau continent de la physique ? | CNRS Le journal (lejournal.cnrs.fr)
- https://home.cern/news/news/physics/tantalising-hints-lepton-universality-violation-lhcb-experiment (home.cern)
- https://arxiv.org/abs/2103.11769 (arxiv.org)
- https://physicsworld.com/a/lhcb-experiment-finds-intriguing-hints-of-new-physics/ (physicsworld.com)
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