Measurement of lepton universality parameters in $B^{+}→K^{+}ℓ^{+}ℓ^{−}$ and $B^{0}→K^{*0}ℓ^{+}ℓ^{−}$ decays

LHCb Collaboration; Bernet, R; Müller, K; Owen, P; Serra, N; Steinkamp, O; et al (2023). Measurement of lepton universality parameters in $B^{+}→K^{+}ℓ^{+}ℓ^{−}$ and $B^{0}→K^{*0}ℓ^{+}ℓ^{−}$ decays. Physical review D, 108(3):032002.