https://doi.org/10.1140/epjc/s10052-021-09725-1
Regular Article - Theoretical Physics
New physics in rare B decays after Moriond 2021
1
Department of Physics and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, 1156 High Street, 95064, Santa Cruz, CA, USA
2
Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland
Received:
14
June
2021
Accepted:
7
October
2021
Published online:
28
October
2021
The anomalies in rare B decays endure. We present results of an updated global analysis that takes into account the latest experimental input – in particular the recent results on 
and BR
– and that qualitatively improves the treatment of theory uncertainties. Fit results are presented for the Wilson coefficients of four-fermion contact interactions. We find that muon specific Wilson coefficients 
or 
continue to give an excellent description of the data. If only theoretically clean observables are considered, muon specific 
or 
improve over the Standard Model by 
and 
, respectively. In various new physics scenarios we provide predictions for lepton flavor universality observables and CP asymmetries that can be tested with more data. We update our previous combination of ATLAS, CMS, and LHCb data on BR and BR
taking into account the full two-dimensional non-Gaussian experimental likelihoods.
© The Author(s) 2021
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