Fitting in or odd one out? Pulls vs residual responses in $b\to s{\ell }^{+}{\ell }^{-}$

Abstract

New results in processes with an underlying quark transition $b\to s{\ell }^{+}{\ell }^{-}$ have been recently reported by the LHCb and Belle II collaborations. In this note we show how the main implications of a handful of new measurements can be understood with the tools introduced in our recent paper, arXiv:1811.10793, without the need to redo the global fits. We find that the main impact of the new results, due to $R_K^{[1.1,6]}$ from LHCb, is a decrease in $C_{10\hat{I}¼}^{NP}$ with a reduced uncertainty. We validate this conclusion by presenting the result of a new global fit.

11 pages, 2 figures