The analysis of b s^+^- flavor-changing neutral currents (FCNC) is a powerful test of the Standard Model (SM). As these decay modes are highly suppressed in the SM, potential New Physics (NP) contributions can have a significant impact on measured observables. In recent years, experimental measurements of different observables in this sector displayed intriguing tensions with SM theory predictions and sparked a collective effort to investigate their potential origin from the experimental and theoretical sides. Measurements of branching fractions and angular observables from B^+ K^+^+^-, B^0 K^*0^+^-, B^+ K^*+^+^- and Bₛ⁰ (1020) ^+^- decays conducted by the LHCb collaboration consistently indicate a shift of the Wilson Coefficient (WC) Re (C₉) of approximately (C₉) -1. Tests of lepton flavor universality (LFU), on the other hand, found branching fraction ratios of b s e^+e^- and b s ^+^- decay modes to be consistent with the LFU hypothesis. These proceedings present the latest results of angular analyses of the decay modes B^0 K^*0e^+e^- and Bₛ (1020) e^+e^-, as well as the analysis of local and nonlocal amplitudes in the B^0 K^*0^+^- decay mode using the Run~1 and Run~2 LHCb data samples.
Leon David Carus (Fri,) studied this question.